400105454 has 64 divisors (see below), whose sum is σ = 729907200. Its totient is φ = 160943328.

The previous prime is 400105417. The next prime is 400105469. The reversal of 400105454 is 454501004.

It is a super-2 number, since 2×400105454² = 320168748641092232, 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 31 ways as a sum of consecutive naturals, for example, 2235137 + ... + 2235315.

It is an arithmetic number, because the mean of its divisors is an integer number (11404800).

Almost surely, 2^400105454 is an apocalyptic number.

400105454 is a deficient number, since it is larger than the sum of its proper divisors (329801746).

400105454 is a wasteful number, since it uses less digits than its factorization.

400105454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 400105454 is about 20002.6361762644. The cubic root of 400105454 is about 736.8710433485.

Adding to 400105454 its reverse (454501004), we get a palindrome (854606458).

The spelling of 400105454 in words is "four hundred million, one hundred five thousand, four hundred fifty-four".