37428720 has 80 divisors (see below), whose sum is σ = 132610560. Its totient is φ = 8554752.

The previous prime is 37428697. The next prime is 37428737. The reversal of 37428720 is 2782473.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9460 + ... + 12819.

It is an arithmetic number, because the mean of its divisors is an integer number (1657632).

Almost surely, 2^37428720 is an apocalyptic number.

37428720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37428720 is an abundant number, since it is smaller than the sum of its proper divisors (95181840).

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

37428720 is a wasteful number, since it uses less digits than its factorization.

37428720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22302 (or 22296 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 37428720 is about 6117.9016010394. The cubic root of 37428720 is about 334.5042641688.

The spelling of 37428720 in words is "thirty-seven million, four hundred twenty-eight thousand, seven hundred twenty".