374521685 has 8 divisors (see below), whose sum is σ = 449539416. Its totient is φ = 299541760.

The previous prime is 374521681. The next prime is 374521703. The reversal of 374521685 is 586125473.

It can be written as a sum of positive squares in 4 ways, for example, as 70123876 + 304397809 = 8374^2 + 17447^2 .

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

It is not a de Polignac number, because 374521685 - 2² = 374521681 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 (374521681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21665 + ... + 34905.

It is an arithmetic number, because the mean of its divisors is an integer number (56192427).

Almost surely, 2^374521685 is an apocalyptic number.

It is an amenable number.

374521685 is a deficient number, since it is larger than the sum of its proper divisors (75017731).

374521685 is a wasteful number, since it uses less digits than its factorization.

374521685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18903.

The product of its digits is 201600, while the sum is 41.

The square root of 374521685 is about 19352.5627501889. The cubic root of 374521685 is about 720.8180548809.

The spelling of 374521685 in words is "three hundred seventy-four million, five hundred twenty-one thousand, six hundred eighty-five".