37406645 has 8 divisors (see below), whose sum is σ = 44921304. Its totient is φ = 29903104.

The previous prime is 37406623. The next prime is 37406653. The reversal of 37406645 is 54660473.

It can be written as a sum of positive squares in 4 ways, for example, as 8773444 + 28633201 = 2962^2 + 5351^2 .

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 37406645 - 2⁶ = 37406581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9857 + ... + 13113.

It is an arithmetic number, because the mean of its divisors is an integer number (5615163).

Almost surely, 2^37406645 is an apocalyptic number.

It is an amenable number.

37406645 is a deficient number, since it is larger than the sum of its proper divisors (7514659).

37406645 is a wasteful number, since it uses less digits than its factorization.

37406645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 37406645 is about 6116.0972032825. The cubic root of 37406645 is about 334.4384890652.

The spelling of 37406645 in words is "thirty-seven million, four hundred six thousand, six hundred forty-five".