38772480 has 144 divisors (see below), whose sum is σ = 129507840. Its totient is φ = 9867264.

The previous prime is 38772479. The next prime is 38772491. The reversal of 38772480 is 8427783.

It is a congruent number.

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, 88101 + ... + 88539.

It is an arithmetic number, because the mean of its divisors is an integer number (899360).

Almost surely, 2^38772480 is an apocalyptic number.

38772480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38772480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64753920).

38772480 is an abundant number, since it is smaller than the sum of its proper divisors (90735360).

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

38772480 is a wasteful number, since it uses less digits than its factorization.

38772480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 38772480 is about 6226.7551742461. The cubic root of 38772480 is about 338.4603975380.

The spelling of 38772480 in words is "thirty-eight million, seven hundred seventy-two thousand, four hundred eighty".