38700690 has 64 divisors (see below), whose sum is σ = 108345600. Its totient is φ = 8843520.

The previous prime is 38700677. The next prime is 38700707. The reversal of 38700690 is 9600783.

It is a happy number.

It is a super-2 number, since 2×38700690² = 2995486812952200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8410 + ... + 12170.

It is an arithmetic number, because the mean of its divisors is an integer number (1692900).

Almost surely, 2^38700690 is an apocalyptic number.

38700690 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 38700690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54172800).

38700690 is an abundant number, since it is smaller than the sum of its proper divisors (69644910).

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

38700690 is a wasteful number, since it uses less digits than its factorization.

38700690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792 (or 3778 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 38700690 is about 6220.9878636757. The cubic root of 38700690 is about 338.2513739907.

The spelling of 38700690 in words is "thirty-eight million, seven hundred thousand, six hundred ninety".