37940819 has 4 divisors (see below), whose sum is σ = 43360944. Its totient is φ = 32520696.

The previous prime is 37940723. The next prime is 37940831. The reversal of 37940819 is 91804973.

It is a happy number.

37940819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 37940819 - 2²⁴ = 21163603 is a prime.

It is a super-2 number, since 2×37940819² = 2879011492781522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37940849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710052 + ... + 2710065.

It is an arithmetic number, because the mean of its divisors is an integer number (10840236).

Almost surely, 2^37940819 is an apocalyptic number.

37940819 is a deficient number, since it is larger than the sum of its proper divisors (5420125).

37940819 is an equidigital number, since it uses as much as digits as its factorization.

37940819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420124.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 37940819 is about 6159.6119195936. The cubic root of 37940819 is about 336.0229192369.

The spelling of 37940819 in words is "thirty-seven million, nine hundred forty thousand, eight hundred nineteen".