402889050 has 36 divisors (see below), whose sum is σ = 1082429790. Its totient is φ = 107436960.

The previous prime is 402889043. The next prime is 402889057. The reversal of 402889050 is 50988204.

It is an interprime number because it is at equal distance from previous prime (402889043) and next prime (402889057).

It can be written as a sum of positive squares in 3 ways, for example, as 231252849 + 171636201 = 15207^2 + 13101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402888996 and 402889014.

It is not an unprimeable number, because it can be changed into a prime (402889057) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 447205 + ... + 448104.

Almost surely, 2^402889050 is an apocalyptic number.

402889050 is an abundant number, since it is smaller than the sum of its proper divisors (679540740).

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

402889050 is a wasteful number, since it uses less digits than its factorization.

402889050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895327 (or 895319 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 402889050 is about 20072.0963030771. The cubic root of 402889050 is about 738.5759379308.

The spelling of 402889050 in words is "four hundred two million, eight hundred eighty-nine thousand, fifty".