37499994 has 144 divisors (see below), whose sum is σ = 104196456. Its totient is φ = 9676800.

The previous prime is 37499993. The next prime is 37500007. The reversal of 37499994 is 49999473.

It can be written as a sum of positive squares in 4 ways, for example, as 17114769 + 20385225 = 4137^2 + 4515^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 37499994.

It is not an unprimeable number, because it can be changed into a prime (37499993) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 614724 + ... + 614784.

Almost surely, 2^37499994 is an apocalyptic number.

37499994 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 37499994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52098228).

37499994 is an abundant number, since it is smaller than the sum of its proper divisors (66696462).

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

37499994 is a wasteful number, since it uses less digits than its factorization.

37499994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 37499994 is about 6123.7238670600. The cubic root of 37499994 is about 334.7164571895.

The spelling of 37499994 in words is "thirty-seven million, four hundred ninety-nine thousand, nine hundred ninety-four".