1042215930 has 128 divisors (see below), whose sum is σ = 3343564800. Its totient is φ = 225675072.

The previous prime is 1042215907. The next prime is 1042215931. The reversal of 1042215930 is 395122401.

1042215930 is a `hidden beast` number, since 10 + 42 + 21 + 593 + 0 = 666.

1042215930 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1042215894 and 1042215903.

It is not an unprimeable number, because it can be changed into a prime (1042215931) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21399 + ... + 50421.

It is an arithmetic number, because the mean of its divisors is an integer number (26121600).

Almost surely, 2^1042215930 is an apocalyptic number.

1042215930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042215930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671782400).

1042215930 is an abundant number, since it is smaller than the sum of its proper divisors (2301348870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042215930 is a wasteful number, since it uses less digits than its factorization.

1042215930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29065 (or 29059 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1042215930 is about 32283.3692479580. The cubic root of 1042215930 is about 1013.8784735840.

The spelling of 1042215930 in words is "one billion, forty-two million, two hundred fifteen thousand, nine hundred thirty".