400854450 has 24 divisors (see below), whose sum is σ = 994119408. Its totient is φ = 106894480.

The previous prime is 400854401. The next prime is 400854469. The reversal of 400854450 is 54458004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1336032 + ... + 1336331.

It is an arithmetic number, because the mean of its divisors is an integer number (41421642).

Almost surely, 2^400854450 is an apocalyptic number.

400854450 is an abundant number, since it is smaller than the sum of its proper divisors (593264958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400854450 is a wasteful number, since it uses less digits than its factorization.

400854450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672378 (or 2672373 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 400854450 is about 20021.3498545927. The cubic root of 400854450 is about 737.3305633932.

The spelling of 400854450 in words is "four hundred million, eight hundred fifty-four thousand, four hundred fifty".