915180040 has 64 divisors (see below), whose sum is σ = 2193609600. Its totient is φ = 342432768.

The previous prime is 915180037. The next prime is 915180043. The reversal of 915180040 is 40081519.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (915180037) and next prime (915180043).

It is a super-2 number, since 2×915180040² = 1675109011228803200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 915179990 and 915180008.

It is not an unprimeable number, because it can be changed into a prime (915180043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109531 + ... + 117589.

It is an arithmetic number, because the mean of its divisors is an integer number (34275150).

Almost surely, 2^915180040 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 915180040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096804800).

915180040 is an abundant number, since it is smaller than the sum of its proper divisors (1278429560).

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

915180040 is a wasteful number, since it uses less digits than its factorization.

915180040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254 (or 8250 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 915180040 is about 30251.9427475328. The cubic root of 915180040 is about 970.8873588941.

The spelling of 915180040 in words is "nine hundred fifteen million, one hundred eighty thousand, forty".