38770320 has 40 divisors (see below), whose sum is σ = 120188736. Its totient is φ = 10338688.

The previous prime is 38770313. The next prime is 38770321. The reversal of 38770320 is 2307783.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (38770321) 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, 80532 + ... + 81011.

Almost surely, 2^38770320 is an apocalyptic number.

38770320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38770320 is an abundant number, since it is smaller than the sum of its proper divisors (81418416).

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

38770320 is a wasteful number, since it uses less digits than its factorization.

38770320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161559 (or 161553 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 38770320 is about 6226.5817267583. The cubic root of 38770320 is about 338.4541122549.

It can be divided in two parts, 387 and 70320, that added together give a palindrome (70707).

The spelling of 38770320 in words is "thirty-eight million, seven hundred seventy thousand, three hundred twenty".