402387050 has 24 divisors (see below), whose sum is σ = 806013516. Its totient is φ = 148573440.

The previous prime is 402387031. The next prime is 402387061. The reversal of 402387050 is 50783204.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 77774761 + 324612289 = 8819^2 + 18017^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308879 + ... + 310178.

Almost surely, 2^402387050 is an apocalyptic number.

402387050 is an abundant number, since it is smaller than the sum of its proper divisors (403626466).

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

402387050 is a wasteful number, since it uses less digits than its factorization.

402387050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619082 (or 619077 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 402387050 is about 20059.5874832959. The cubic root of 402387050 is about 738.2690550816.

The spelling of 402387050 in words is "four hundred two million, three hundred eighty-seven thousand, fifty".