37994864 has 40 divisors (see below), whose sum is σ = 79869888. Its totient is φ = 17438720.

The previous prime is 37994863. The next prime is 37994897. The reversal of 37994864 is 46849973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37994863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9449 + ... + 12855.

Almost surely, 2^37994864 is an apocalyptic number.

37994864 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37994864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39934944).

37994864 is an abundant number, since it is smaller than the sum of its proper divisors (41875024).

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

37994864 is a wasteful number, since it uses less digits than its factorization.

37994864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473 (or 3467 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 37994864 is about 6163.9974042824. The cubic root of 37994864 is about 336.1823934135.

The spelling of 37994864 in words is "thirty-seven million, nine hundred ninety-four thousand, eight hundred sixty-four".