400362645 has 8 divisors (see below), whose sum is σ = 640580256. Its totient is φ = 213526736.

The previous prime is 400362629. The next prime is 400362659. The reversal of 400362645 is 546263004.

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

It is a cyclic number.

It is not a de Polignac number, because 400362645 - 2⁴ = 400362629 is a prime.

It is a super-2 number, since 2×400362645² = 320580495022792050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13345407 + ... + 13345436.

It is an arithmetic number, because the mean of its divisors is an integer number (80072532).

Almost surely, 2^400362645 is an apocalyptic number.

It is an amenable number.

400362645 is a deficient number, since it is larger than the sum of its proper divisors (240217611).

400362645 is a wasteful number, since it uses less digits than its factorization.

400362645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26690851.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 400362645 is about 20009.0640710654. The cubic root of 400362645 is about 737.0288984052.

The spelling of 400362645 in words is "four hundred million, three hundred sixty-two thousand, six hundred forty-five".