747400020 has 24 divisors (see below), whose sum is σ = 2092720224. Its totient is φ = 199306656.

The previous prime is 747400013. The next prime is 747400039. The reversal of 747400020 is 20004747.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228274 + ... + 6228393.

It is an arithmetic number, because the mean of its divisors is an integer number (87196676).

Almost surely, 2^747400020 is an apocalyptic number.

It is an amenable number.

747400020 is an abundant number, since it is smaller than the sum of its proper divisors (1345320204).

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

747400020 is a wasteful number, since it uses less digits than its factorization.

747400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12456679 (or 12456677 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 747400020 is about 27338.6177412100. The cubic root of 747400020 is about 907.5091970624.

Adding to 747400020 its reverse (20004747), we get a palindrome (767404767).

The spelling of 747400020 in words is "seven hundred forty-seven million, four hundred thousand, twenty".