38769690 has 64 divisors (see below), whose sum is σ = 103731840. Its totient is φ = 9216000.

The previous prime is 38769649. The next prime is 38769701. The reversal of 38769690 is 9696783.

It is a happy number.

It is a super-2 number, since 2×38769690² = 3006177725392200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 7690 + ... + 11690.

It is an arithmetic number, because the mean of its divisors is an integer number (1620810).

Almost surely, 2^38769690 is an apocalyptic number.

38769690 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 38769690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51865920).

38769690 is an abundant number, since it is smaller than the sum of its proper divisors (64962150).

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

38769690 is a wasteful number, since it uses less digits than its factorization.

38769690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 38769690 is about 6226.5311369975. The cubic root of 38769690 is about 338.4522790034.

The spelling of 38769690 in words is "thirty-eight million, seven hundred sixty-nine thousand, six hundred ninety".