400553245 has 16 divisors (see below), whose sum is σ = 489576960. Its totient is φ = 314540800.

The previous prime is 400553239. The next prime is 400553287. The reversal of 400553245 is 542355004.

It is not a de Polignac number, because 400553245 - 2¹¹ = 400551197 is a prime.

It is a congruent number.

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, 82485 + ... + 87205.

It is an arithmetic number, because the mean of its divisors is an integer number (30598560).

Almost surely, 2^400553245 is an apocalyptic number.

It is an amenable number.

400553245 is a deficient number, since it is larger than the sum of its proper divisors (89023715).

400553245 is a wasteful number, since it uses less digits than its factorization.

400553245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 400553245 is about 20013.8263458040. The cubic root of 400553245 is about 737.1458385704.

The spelling of 400553245 in words is "four hundred million, five hundred fifty-three thousand, two hundred forty-five".