1015495240 has 16 divisors (see below), whose sum is σ = 2284864380. Its totient is φ = 406198080.

The previous prime is 1015495237. The next prime is 1015495249. The reversal of 1015495240 is 425945101.

It can be written as a sum of positive squares in 2 ways, for example, as 938441956 + 77053284 = 30634^2 + 8778^2 .

It is not an unprimeable number, because it can be changed into a prime (1015495249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12693651 + ... + 12693730.

Almost surely, 2^1015495240 is an apocalyptic number.

1015495240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015495240 is an abundant number, since it is smaller than the sum of its proper divisors (1269369140).

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

1015495240 is a wasteful number, since it uses less digits than its factorization.

1015495240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25387392 (or 25387388 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1015495240 is about 31866.8360525484. The cubic root of 1015495240 is about 1005.1386292600.

The spelling of 1015495240 in words is "one billion, fifteen million, four hundred ninety-five thousand, two hundred forty".