402045446 has 8 divisors (see below), whose sum is σ = 657892584. Its totient is φ = 182747920.

The previous prime is 402045409. The next prime is 402045481. The reversal of 402045446 is 644540204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 9137375 + ... + 9137418.

It is an arithmetic number, because the mean of its divisors is an integer number (82236573).

Almost surely, 2^402045446 is an apocalyptic number.

402045446 is a deficient number, since it is larger than the sum of its proper divisors (255847138).

402045446 is a wasteful number, since it uses less digits than its factorization.

402045446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18274806.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 402045446 is about 20051.0709439671. The cubic root of 402045446 is about 738.0600796167.

The spelling of 402045446 in words is "four hundred two million, forty-five thousand, four hundred forty-six".