38202720 has 48 divisors (see below), whose sum is σ = 120340080. Its totient is φ = 10187264.

The previous prime is 38202713. The next prime is 38202721. The reversal of 38202720 is 2720283.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38202721) 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, 39315 + ... + 40274.

It is an arithmetic number, because the mean of its divisors is an integer number (2507085).

Almost surely, 2^38202720 is an apocalyptic number.

38202720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38202720 is an abundant number, since it is smaller than the sum of its proper divisors (82137360).

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

38202720 is a wasteful number, since it uses less digits than its factorization.

38202720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79607 (or 79599 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 38202720 is about 6180.8348950607. The cubic root of 38202720 is about 336.7943225121.

The spelling of 38202720 in words is "thirty-eight million, two hundred two thousand, seven hundred twenty".