38486220 has 24 divisors (see below), whose sum is σ = 107761584. Its totient is φ = 10262976.

The previous prime is 38486209. The next prime is 38486233. The reversal of 38486220 is 2268483.

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, 320659 + ... + 320778.

It is an arithmetic number, because the mean of its divisors is an integer number (4490066).

Almost surely, 2^38486220 is an apocalyptic number.

38486220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38486220 is an abundant number, since it is smaller than the sum of its proper divisors (69275364).

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

38486220 is a wasteful number, since it uses less digits than its factorization.

38486220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641449 (or 641447 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 38486220 is about 6203.7262995719. The cubic root of 38486220 is about 337.6253800278.

The spelling of 38486220 in words is "thirty-eight million, four hundred eighty-six thousand, two hundred twenty".