38072220 has 48 divisors (see below), whose sum is σ = 107176608. Its totient is φ = 10097920.

The previous prime is 38072189. The next prime is 38072261. The reversal of 38072220 is 2227083.

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, 10210 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (2232846).

Almost surely, 2^38072220 is an apocalyptic number.

38072220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38072220 is an abundant number, since it is smaller than the sum of its proper divisors (69104388).

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

38072220 is a wasteful number, since it uses less digits than its factorization.

38072220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430 (or 3428 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 38072220 is about 6170.2690378945. The cubic root of 38072220 is about 336.4103899860.

The spelling of 38072220 in words is "thirty-eight million, seventy-two thousand, two hundred twenty".