980265640 has 32 divisors (see below), whose sum is σ = 2206699560. Its totient is φ = 391910400.

The previous prime is 980265619. The next prime is 980265661. The reversal of 980265640 is 46562089.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (980265619) and next prime (980265661).

It can be written as a sum of positive squares in 4 ways, for example, as 159213924 + 821051716 = 12618^2 + 28654^2 .

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 = 980265593 and 980265602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95980 + ... + 105700.

Almost surely, 2^980265640 is an apocalyptic number.

It is an amenable number.

980265640 is an abundant number, since it is smaller than the sum of its proper divisors (1226433920).

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

980265640 is a wasteful number, since it uses less digits than its factorization.

980265640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12253 (or 12249 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 980265640 is about 31309.1941767909. The cubic root of 980265640 is about 993.3781275938.

The spelling of 980265640 in words is "nine hundred eighty million, two hundred sixty-five thousand, six hundred forty".