402135016 has 8 divisors (see below), whose sum is σ = 754003170. Its totient is φ = 201067504.

The previous prime is 402135001. The next prime is 402135047. The reversal of 402135016 is 610531204.

It can be written as a sum of positive squares in only one way, i.e., 395612100 + 6522916 = 19890^2 + 2554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 25133431 + ... + 25133446.

Almost surely, 2^402135016 is an apocalyptic number.

It is an amenable number.

402135016 is a deficient number, since it is larger than the sum of its proper divisors (351868154).

402135016 is a wasteful number, since it uses less digits than its factorization.

402135016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50266883 (or 50266879 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 402135016 is about 20053.3043661138. The cubic root of 402135016 is about 738.1148853053.

The spelling of 402135016 in words is "four hundred two million, one hundred thirty-five thousand, sixteen".