37749894 has 128 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 9257472.

The previous prime is 37749863. The next prime is 37749917. The reversal of 37749894 is 49894773.

It is a happy number.

It is a super-2 number, since 2×37749894² = 2850108994022472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 454777 + ... + 454859.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^37749894 is an apocalyptic number.

37749894 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 37749894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

37749894 is an abundant number, since it is smaller than the sum of its proper divisors (63856506).

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

37749894 is a wasteful number, since it uses less digits than its factorization.

37749894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 125 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 37749894 is about 6144.0942375585. The cubic root of 37749894 is about 335.4583286204.

The spelling of 37749894 in words is "thirty-seven million, seven hundred forty-nine thousand, eight hundred ninety-four".