37294021 has 8 divisors (see below), whose sum is σ = 37911384. Its totient is φ = 36679680.

The previous prime is 37294007. The next prime is 37294031. The reversal of 37294021 is 12049273.

37294021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13771521 + 23522500 = 3711^2 + 4850^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 37294021 - 2⁵ = 37293989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37294031) 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 7 ways as a sum of consecutive naturals, for example, 46395 + ... + 47191.

It is an arithmetic number, because the mean of its divisors is an integer number (4738923).

Almost surely, 2^37294021 is an apocalyptic number.

It is an amenable number.

37294021 is a deficient number, since it is larger than the sum of its proper divisors (617363).

37294021 is an equidigital number, since it uses as much as digits as its factorization.

37294021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 37294021 is about 6106.8830838653. The cubic root of 37294021 is about 334.1025089636.

It can be divided in two parts, 3729 and 4021, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 37294021 in words is "thirty-seven million, two hundred ninety-four thousand, twenty-one".