400154052 has 48 divisors (see below), whose sum is σ = 955825920. Its totient is φ = 130236672.

The previous prime is 400154047. The next prime is 400154063. The reversal of 400154052 is 250451004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455838 + ... + 456714.

It is an arithmetic number, because the mean of its divisors is an integer number (19913040).

Almost surely, 2^400154052 is an apocalyptic number.

It is an amenable number.

400154052 is an abundant number, since it is smaller than the sum of its proper divisors (555671868).

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

400154052 is a wasteful number, since it uses less digits than its factorization.

400154052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 400154052 is about 20003.8509292586. The cubic root of 400154052 is about 736.9008763244.

The spelling of 400154052 in words is "four hundred million, one hundred fifty-four thousand, fifty-two".