4457620 has 24 divisors (see below), whose sum is σ = 9453024. Its totient is φ = 1765536.

The previous prime is 4457611. The next prime is 4457623. The reversal of 4457620 is 267544.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099 + ... + 3181.

It is an arithmetic number, because the mean of its divisors is an integer number (393876).

Almost surely, 2^4457620 is an apocalyptic number.

It is an amenable number.

4457620 is an abundant number, since it is smaller than the sum of its proper divisors (4995404).

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

4457620 is a wasteful number, since it uses less digits than its factorization.

4457620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 4457620 is about 2111.3076516699. The cubic root of 4457620 is about 164.5764465775.

The spelling of 4457620 in words is "four million, four hundred fifty-seven thousand, six hundred twenty".