456214728 has 16 divisors (see below), whose sum is σ = 1140536880. Its totient is φ = 152071568.

The previous prime is 456214721. The next prime is 456214739. The reversal of 456214728 is 827412654.

It is a super-2 number, since 2×456214728² = 416263756088227968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (456214721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9504450 + ... + 9504497.

It is an arithmetic number, because the mean of its divisors is an integer number (71283555).

Almost surely, 2^456214728 is an apocalyptic number.

It is an amenable number.

456214728 is an abundant number, since it is smaller than the sum of its proper divisors (684322152).

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

456214728 is a wasteful number, since it uses less digits than its factorization.

456214728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19008956 (or 19008952 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 456214728 is about 21359.1836922669. The cubic root of 456214728 is about 769.8210232250.

The spelling of 456214728 in words is "four hundred fifty-six million, two hundred fourteen thousand, seven hundred twenty-eight".