402066136 has 8 divisors (see below), whose sum is σ = 753874020. Its totient is φ = 201033064.

The previous prime is 402066083. The next prime is 402066143. The reversal of 402066136 is 631660204.

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

It is a congruent number.

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, 25129126 + ... + 25129141.

Almost surely, 2^402066136 is an apocalyptic number.

It is an amenable number.

402066136 is a deficient number, since it is larger than the sum of its proper divisors (351807884).

402066136 is a wasteful number, since it uses less digits than its factorization.

402066136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50258273 (or 50258269 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 402066136 is about 20051.5868698714. The cubic root of 402066136 is about 738.0727400437.

The spelling of 402066136 in words is "four hundred two million, sixty-six thousand, one hundred thirty-six".