747214428 has 12 divisors (see below), whose sum is σ = 1743500360. Its totient is φ = 249071472.

The previous prime is 747214417. The next prime is 747214441. The reversal of 747214428 is 824412747.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×747214428² = 1116658802822734368, which contains 22 as substring.

It is a congruent number.

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, 31133923 + ... + 31133946.

Almost surely, 2^747214428 is an apocalyptic number.

It is an amenable number.

747214428 is an abundant number, since it is smaller than the sum of its proper divisors (996285932).

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

747214428 is a wasteful number, since it uses less digits than its factorization.

747214428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62267876 (or 62267874 counting only the distinct ones).

The product of its digits is 100352, while the sum is 39.

The square root of 747214428 is about 27335.2232110879. The cubic root of 747214428 is about 907.4340742432.

The spelling of 747214428 in words is "seven hundred forty-seven million, two hundred fourteen thousand, four hundred twenty-eight".