400626053 has 4 divisors (see below), whose sum is σ = 400896960. Its totient is φ = 400355148.

The previous prime is 400626041. The next prime is 400626067. The reversal of 400626053 is 350626004.

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 a cyclic number.

It is not a de Polignac number, because 400626053 - 2²⁴ = 383848837 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 (400626553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133223 + ... + 136196.

It is an arithmetic number, because the mean of its divisors is an integer number (100224240).

Almost surely, 2^400626053 is an apocalyptic number.

It is an amenable number.

400626053 is a deficient number, since it is larger than the sum of its proper divisors (270907).

400626053 is a wasteful number, since it uses less digits than its factorization.

400626053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270906.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 400626053 is about 20015.6452056885. The cubic root of 400626053 is about 737.1904991854.

The spelling of 400626053 in words is "four hundred million, six hundred twenty-six thousand, fifty-three".