747626420 has 36 divisors (see below), whose sum is σ = 1580407500. Its totient is φ = 297083904.

The previous prime is 747626417. The next prime is 747626449. The reversal of 747626420 is 24626747.

It can be written as a sum of positive squares in 6 ways, for example, as 94517284 + 653109136 = 9722^2 + 25556^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 597956 + ... + 599204.

Almost surely, 2^747626420 is an apocalyptic number.

It is an amenable number.

747626420 is an abundant number, since it is smaller than the sum of its proper divisors (832781080).

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

747626420 is a wasteful number, since it uses less digits than its factorization.

747626420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 747626420 is about 27342.7580905804. The cubic root of 747626420 is about 907.6008210632.

The spelling of 747626420 in words is "seven hundred forty-seven million, six hundred twenty-six thousand, four hundred twenty".