38599980 has 96 divisors (see below), whose sum is σ = 114476544. Its totient is φ = 9698304.

The previous prime is 38599961. The next prime is 38600021. The reversal of 38599980 is 8999583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114372 + ... + 114708.

It is an arithmetic number, because the mean of its divisors is an integer number (1192464).

Almost surely, 2^38599980 is an apocalyptic number.

38599980 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 38599980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57238272).

38599980 is an abundant number, since it is smaller than the sum of its proper divisors (75876564).

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

38599980 is a wasteful number, since it uses less digits than its factorization.

38599980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 38599980 is about 6212.8882172465. Note that the first 3 decimals coincide. The cubic root of 38599980 is about 337.9577109423.

The spelling of 38599980 in words is "thirty-eight million, five hundred ninety-nine thousand, nine hundred eighty".