626157140 has 24 divisors (see below), whose sum is σ = 1502777472. Its totient is φ = 214682400.

The previous prime is 626157139. The next prime is 626157157. The reversal of 626157140 is 41751626.

It is a junction number, because it is equal to n+sod(n) for n = 626157097 and 626157106.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2236136 + ... + 2236415.

It is an arithmetic number, because the mean of its divisors is an integer number (62615728).

Almost surely, 2^626157140 is an apocalyptic number.

It is an amenable number.

626157140 is an abundant number, since it is smaller than the sum of its proper divisors (876620332).

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

626157140 is a wasteful number, since it uses less digits than its factorization.

626157140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472567 (or 4472565 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 626157140 is about 25023.1320981207. The cubic root of 626157140 is about 855.5152964571.

The spelling of 626157140 in words is "six hundred twenty-six million, one hundred fifty-seven thousand, one hundred forty".