743716420 has 12 divisors (see below), whose sum is σ = 1561804524. Its totient is φ = 297486560.

The previous prime is 743716387. The next prime is 743716439. The reversal of 743716420 is 24617347.

It can be written as a sum of positive squares in 2 ways, for example, as 157301764 + 586414656 = 12542^2 + 24216^2 .

It is a super-2 number, since 2×743716420² = 1106228226755232800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18592891 + ... + 18592930.

It is an arithmetic number, because the mean of its divisors is an integer number (130150377).

Almost surely, 2^743716420 is an apocalyptic number.

It is an amenable number.

743716420 is an abundant number, since it is smaller than the sum of its proper divisors (818088104).

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

743716420 is a wasteful number, since it uses less digits than its factorization.

743716420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37185830 (or 37185828 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 743716420 is about 27271.1646249294. The cubic root of 743716420 is about 906.0158388595.

The spelling of 743716420 in words is "seven hundred forty-three million, seven hundred sixteen thousand, four hundred twenty".