37994418 has 96 divisors (see below), whose sum is σ = 104232960. Its totient is φ = 9715680.

The previous prime is 37994417. The next prime is 37994423. The reversal of 37994418 is 81449973.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37994417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109321 + ... + 109667.

It is an arithmetic number, because the mean of its divisors is an integer number (1085760).

Almost surely, 2^37994418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37994418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52116480).

37994418 is an abundant number, since it is smaller than the sum of its proper divisors (66238542).

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

37994418 is a wasteful number, since it uses less digits than its factorization.

37994418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 449 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 37994418 is about 6163.9612263544. The cubic root of 37994418 is about 336.1810779907.

The spelling of 37994418 in words is "thirty-seven million, nine hundred ninety-four thousand, four hundred eighteen".