981850402 has 16 divisors (see below), whose sum is σ = 1679364792. Its totient is φ = 426504960.

The previous prime is 981850399. The next prime is 981850417. The reversal of 981850402 is 204058189.

It can be written as a sum of positive squares in 4 ways, for example, as 522991161 + 458859241 = 22869^2 + 21421^2 .

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, 1110249 + ... + 1111132.

Almost surely, 2^981850402 is an apocalyptic number.

981850402 is a deficient number, since it is larger than the sum of its proper divisors (697514390).

981850402 is a wasteful number, since it uses less digits than its factorization.

981850402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221413.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 981850402 is about 31334.4922090657. The cubic root of 981850402 is about 993.9131595450.

The spelling of 981850402 in words is "nine hundred eighty-one million, eight hundred fifty thousand, four hundred two".