400554200 has 96 divisors (see below), whose sum is σ = 1023148800. Its totient is φ = 145157760.

The previous prime is 400554197. The next prime is 400554251. The reversal of 400554200 is 2455004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85109 + ... + 89691.

It is an arithmetic number, because the mean of its divisors is an integer number (10657800).

Almost surely, 2^400554200 is an apocalyptic number.

400554200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400554200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511574400).

400554200 is an abundant number, since it is smaller than the sum of its proper divisors (622594600).

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

400554200 is a wasteful number, since it uses less digits than its factorization.

400554200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 400554200 is about 20013.8502042960. The cubic root of 400554200 is about 737.1464244049.

The spelling of 400554200 in words is "four hundred million, five hundred fifty-four thousand, two hundred".