402023436 has 12 divisors (see below), whose sum is σ = 938054712. Its totient is φ = 134007808.

The previous prime is 402023393. The next prime is 402023449. The reversal of 402023436 is 634320204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16750965 + ... + 16750988.

It is an arithmetic number, because the mean of its divisors is an integer number (78171226).

Almost surely, 2^402023436 is an apocalyptic number.

It is an amenable number.

402023436 is an abundant number, since it is smaller than the sum of its proper divisors (536031276).

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

402023436 is a wasteful number, since it uses less digits than its factorization.

402023436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33501960 (or 33501958 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 402023436 is about 20050.5220879657. The cubic root of 402023436 is about 738.0466109910.

The spelling of 402023436 in words is "four hundred two million, twenty-three thousand, four hundred thirty-six".