1042215636 has 96 divisors (see below), whose sum is σ = 3041805312. Its totient is φ = 269821440.

The previous prime is 1042215623. The next prime is 1042215641. The reversal of 1042215636 is 6365122401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309715 + ... + 313061.

It is an arithmetic number, because the mean of its divisors is an integer number (31685472).

Almost surely, 2^1042215636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042215636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520902656).

1042215636 is an abundant number, since it is smaller than the sum of its proper divisors (1999589676).

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

1042215636 is a wasteful number, since it uses less digits than its factorization.

1042215636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709 (or 3707 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1042215636 is about 32283.3646945296. The cubic root of 1042215636 is about 1013.8783782486.

The spelling of 1042215636 in words is "one billion, forty-two million, two hundred fifteen thousand, six hundred thirty-six".