1015441020 has 72 divisors (see below), whose sum is σ = 3360193200. Its totient is φ = 246167040.

The previous prime is 1015441019. The next prime is 1015441039. The reversal of 1015441020 is 201445101.

1015441020 is a `hidden beast` number, since 101 + 544 + 1 + 0 + 20 = 666.

It is a super-2 number, since 2×1015441020² = 2062240930197280800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1015440984 and 1015441002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254445 + ... + 258404.

It is an arithmetic number, because the mean of its divisors is an integer number (46669350).

Almost surely, 2^1015441020 is an apocalyptic number.

1015441020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015441020 is an abundant number, since it is smaller than the sum of its proper divisors (2344752180).

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

1015441020 is a wasteful number, since it uses less digits than its factorization.

1015441020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512875 (or 512870 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1015441020 is about 31865.9853134969. The cubic root of 1015441020 is about 1005.1207399306.

Adding to 1015441020 its reverse (201445101), we get a palindrome (1216886121).

The spelling of 1015441020 in words is "one billion, fifteen million, four hundred forty-one thousand, twenty".