400751053 has 4 divisors (see below), whose sum is σ = 406732480. Its totient is φ = 394769628.

The previous prime is 400751041. The next prime is 400751063. The reversal of 400751053 is 350157004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 400751053 - 2²¹ = 398653901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400751003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2990613 + ... + 2990746.

It is an arithmetic number, because the mean of its divisors is an integer number (101683120).

Almost surely, 2^400751053 is an apocalyptic number.

It is an amenable number.

400751053 is a deficient number, since it is larger than the sum of its proper divisors (5981427).

400751053 is an equidigital number, since it uses as much as digits as its factorization.

400751053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981426.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 400751053 is about 20018.7675195053. The cubic root of 400751053 is about 737.2671618899.

The spelling of 400751053 in words is "four hundred million, seven hundred fifty-one thousand, fifty-three".