626434457 has 16 divisors (see below), whose sum is σ = 703203072. Its totient is φ = 553029120.

The previous prime is 626434441. The next prime is 626434469. The reversal of 626434457 is 754434626.

It is a cyclic number.

It is not a de Polignac number, because 626434457 - 2⁴ = 626434441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (626434157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272768 + ... + 275054.

It is an arithmetic number, because the mean of its divisors is an integer number (43950192).

Almost surely, 2^626434457 is an apocalyptic number.

It is an amenable number.

626434457 is a deficient number, since it is larger than the sum of its proper divisors (76768615).

626434457 is a wasteful number, since it uses less digits than its factorization.

626434457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008.

The product of its digits is 483840, while the sum is 41.

The square root of 626434457 is about 25028.6726975283. The cubic root of 626434457 is about 855.6415767490.

The spelling of 626434457 in words is "six hundred twenty-six million, four hundred thirty-four thousand, four hundred fifty-seven".