400105450 has 24 divisors (see below), whose sum is σ = 744729120. Its totient is φ = 159927600.

The previous prime is 400105417. The next prime is 400105469. The reversal of 400105450 is 54501004.

It is a super-2 number, since 2×400105450² = 320168742239405000, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 118891 + ... + 122209.

It is an arithmetic number, because the mean of its divisors is an integer number (31030380).

Almost surely, 2^400105450 is an apocalyptic number.

400105450 is a deficient number, since it is larger than the sum of its proper divisors (344623670).

400105450 is a wasteful number, since it uses less digits than its factorization.

400105450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742 (or 5737 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 400105450 is about 20002.6360762775. The cubic root of 400105450 is about 736.8710408929.

Adding to 400105450 its reverse (54501004), we get a palindrome (454606454).

The spelling of 400105450 in words is "four hundred million, one hundred five thousand, four hundred fifty".