38805620 has 24 divisors (see below), whose sum is σ = 93133824. Its totient is φ = 13304736.

The previous prime is 38805617. The next prime is 38805631. The reversal of 38805620 is 2650883.

It is a super-2 number, since 2×38805620² = 3011752287168800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138452 + ... + 138731.

It is an arithmetic number, because the mean of its divisors is an integer number (3880576).

Almost surely, 2^38805620 is an apocalyptic number.

It is an amenable number.

38805620 is an abundant number, since it is smaller than the sum of its proper divisors (54328204).

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

38805620 is a wasteful number, since it uses less digits than its factorization.

38805620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277199 (or 277197 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 38805620 is about 6229.4157029372. The cubic root of 38805620 is about 338.5568008235.

The spelling of 38805620 in words is "thirty-eight million, eight hundred five thousand, six hundred twenty".