37749990 has 64 divisors (see below), whose sum is σ = 94556160. Its totient is φ = 9636480.

The previous prime is 37749989. The next prime is 37750003. The reversal of 37749990 is 9994773.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 78571 + ... + 79049.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 2^37749990 is an apocalyptic number.

37749990 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 37749990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47278080).

37749990 is an abundant number, since it is smaller than the sum of its proper divisors (56806170).

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

37749990 is a wasteful number, since it uses less digits than its factorization.

37749990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 37749990 is about 6144.1020499337. The cubic root of 37749990 is about 335.4586129830.

The spelling of 37749990 in words is "thirty-seven million, seven hundred forty-nine thousand, nine hundred ninety".