400453355 has 32 divisors (see below), whose sum is σ = 506761920. Its totient is φ = 303493120.

The previous prime is 400453351. The next prime is 400453357. The reversal of 400453355 is 553354004.

It is not a de Polignac number, because 400453355 - 2² = 400453351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400453351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1366589 + ... + 1366881.

It is an arithmetic number, because the mean of its divisors is an integer number (15836310).

Almost surely, 2^400453355 is an apocalyptic number.

400453355 is a deficient number, since it is larger than the sum of its proper divisors (106308565).

400453355 is a wasteful number, since it uses less digits than its factorization.

400453355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 400453355 is about 20011.3306654005. The cubic root of 400453355 is about 737.0845569801.

The spelling of 400453355 in words is "four hundred million, four hundred fifty-three thousand, three hundred fifty-five".