38158020 has 48 divisors (see below), whose sum is σ = 118715520. Its totient is φ = 10175328.

The previous prime is 38158007. The next prime is 38158069. The reversal of 38158020 is 2085183.

It is a happy number.

38158020 is a `hidden beast` number, since 3 + 81 + 580 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 34792 + ... + 35871.

It is an arithmetic number, because the mean of its divisors is an integer number (2473240).

Almost surely, 2^38158020 is an apocalyptic number.

38158020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38158020 is an abundant number, since it is smaller than the sum of its proper divisors (80557500).

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

38158020 is a wasteful number, since it uses less digits than its factorization.

38158020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70681 (or 70673 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 38158020 is about 6177.2178203460. The cubic root of 38158020 is about 336.6629131802.

The spelling of 38158020 in words is "thirty-eight million, one hundred fifty-eight thousand, twenty".