38606490 has 128 divisors (see below), whose sum is σ = 117573120. Its totient is φ = 8930304.

The previous prime is 38606471. The next prime is 38606497. The reversal of 38606490 is 9460683.

38606490 is a `hidden beast` number, since 3 + 8 + 6 + 0 + 649 + 0 = 666.

It is a super-2 number, since 2×38606490² = 2980922140240200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38606497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59347 + ... + 59993.

It is an arithmetic number, because the mean of its divisors is an integer number (918540).

Almost surely, 2^38606490 is an apocalyptic number.

38606490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38606490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58786560).

38606490 is an abundant number, since it is smaller than the sum of its proper divisors (78966630).

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

38606490 is a wasteful number, since it uses less digits than its factorization.

38606490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 38606490 is about 6213.4121060815. The cubic root of 38606490 is about 337.9767090612.

The spelling of 38606490 in words is "thirty-eight million, six hundred six thousand, four hundred ninety".