38120720 has 40 divisors (see below), whose sum is σ = 96690240. Its totient is φ = 13861760.

The previous prime is 38120711. The next prime is 38120759. The reversal of 38120720 is 2702183.

It is a tau number, because it is divible by the number of its divisors (40).

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, 20780 + ... + 22539.

It is an arithmetic number, because the mean of its divisors is an integer number (2417256).

Almost surely, 2^38120720 is an apocalyptic number.

It is an amenable number.

38120720 is an abundant number, since it is smaller than the sum of its proper divisors (58569520).

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

38120720 is a wasteful number, since it uses less digits than its factorization.

38120720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43343 (or 43337 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 38120720 is about 6174.1979236173. The cubic root of 38120720 is about 336.5531798432.

The spelling of 38120720 in words is "thirty-eight million, one hundred twenty thousand, seven hundred twenty".