38020220 has 24 divisors (see below), whose sum is σ = 91248864. Its totient is φ = 13035456.

The previous prime is 38020207. The next prime is 38020223. The reversal of 38020220 is 2202083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38020223) 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, 135647 + ... + 135926.

It is an arithmetic number, because the mean of its divisors is an integer number (3802036).

Almost surely, 2^38020220 is an apocalyptic number.

It is an amenable number.

38020220 is an abundant number, since it is smaller than the sum of its proper divisors (53228644).

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

38020220 is a wasteful number, since it uses less digits than its factorization.

38020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271589 (or 271587 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 38020220 is about 6166.0538434237. The cubic root of 38020220 is about 336.2571609333.

The spelling of 38020220 in words is "thirty-eight million, twenty thousand, two hundred twenty".