1980460402 has 32 divisors (see below), whose sum is σ = 3375561600. Its totient is φ = 866371968.

The previous prime is 1980460393. The next prime is 1980460411. The reversal of 1980460402 is 2040640891.

It is an interprime number because it is at equal distance from previous prime (1980460393) and next prime (1980460411).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13723 + ... + 64414.

It is an arithmetic number, because the mean of its divisors is an integer number (105486300).

Almost surely, 2^1980460402 is an apocalyptic number.

1980460402 is a deficient number, since it is larger than the sum of its proper divisors (1395101198).

1980460402 is a wasteful number, since it uses less digits than its factorization.

1980460402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78210.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1980460402 is about 44502.3640046234. The cubic root of 1980460402 is about 1255.8045564046.

The spelling of 1980460402 in words is "one billion, nine hundred eighty million, four hundred sixty thousand, four hundred two".