400252054 has 4 divisors (see below), whose sum is σ = 600378084. Its totient is φ = 200126026.

The previous prime is 400252009. The next prime is 400252079. The reversal of 400252054 is 450252004.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100063012 + ... + 100063015.

It is an arithmetic number, because the mean of its divisors is an integer number (150094521).

Almost surely, 2^400252054 is an apocalyptic number.

400252054 is a deficient number, since it is larger than the sum of its proper divisors (200126030).

400252054 is a wasteful number, since it uses less digits than its factorization.

400252054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200126029.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 400252054 is about 20006.3003576373. The cubic root of 400252054 is about 736.9610297116.

The spelling of 400252054 in words is "four hundred million, two hundred fifty-two thousand, fifty-four".