400455346 has 8 divisors (see below), whose sum is σ = 626799744. Its totient is φ = 191522100.

The previous prime is 400455337. The next prime is 400455359. The reversal of 400455346 is 643554004.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4352730 + ... + 4352821.

It is an arithmetic number, because the mean of its divisors is an integer number (78349968).

Almost surely, 2^400455346 is an apocalyptic number.

400455346 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

400455346 is a deficient number, since it is larger than the sum of its proper divisors (226344398).

400455346 is a wasteful number, since it uses less digits than its factorization.

400455346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705576.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 400455346 is about 20011.3804121555. The cubic root of 400455346 is about 737.0857785397.

The spelling of 400455346 in words is "four hundred million, four hundred fifty-five thousand, three hundred forty-six".