38213790 has 32 divisors (see below), whose sum is σ = 97109280. Its totient is φ = 9590784.

The previous prime is 38213789. The next prime is 38213809. The reversal of 38213790 is 9731283.

It is a Curzon number.

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, 36955 + ... + 37974.

It is an arithmetic number, because the mean of its divisors is an integer number (3034665).

Almost surely, 2^38213790 is an apocalyptic number.

38213790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38213790 is an abundant number, since it is smaller than the sum of its proper divisors (58895490).

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

38213790 is a wasteful number, since it uses less digits than its factorization.

38213790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74956.

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

The square root of 38213790 is about 6181.7303402850. The cubic root of 38213790 is about 336.8268503277.

The spelling of 38213790 in words is "thirty-eight million, two hundred thirteen thousand, seven hundred ninety".