979610440 has 32 divisors (see below), whose sum is σ = 2217660480. Its totient is φ = 389437632.

The previous prime is 979610399. The next prime is 979610441. The reversal of 979610440 is 44016979.

It is a happy number.

979610440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×979610440² = 1919273228313987200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 979610393 and 979610402.

It is not an unprimeable number, because it can be changed into a prime (979610441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68604 + ... + 81643.

It is an arithmetic number, because the mean of its divisors is an integer number (69301890).

Almost surely, 2^979610440 is an apocalyptic number.

It is an amenable number.

979610440 is an abundant number, since it is smaller than the sum of its proper divisors (1238050040).

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

979610440 is a wasteful number, since it uses less digits than its factorization.

979610440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150421 (or 150417 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 979610440 is about 31298.7290476786. The cubic root of 979610440 is about 993.1567568461.

The spelling of 979610440 in words is "nine hundred seventy-nine million, six hundred ten thousand, four hundred forty".