374726421 has 6 divisors (see below), whose sum is σ = 541271510. Its totient is φ = 249817608.

The previous prime is 374726411. The next prime is 374726453. The reversal of 374726421 is 124627473.

374726421 is a `hidden beast` number, since 3 + 7 + 4 + 7 + 2 + 642 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 302238225 + 72488196 = 17385^2 + 8514^2 .

It is not a de Polignac number, because 374726421 - 2⁵ = 374726389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (374726411) 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 5 ways as a sum of consecutive naturals, for example, 20818126 + ... + 20818143.

Almost surely, 2^374726421 is an apocalyptic number.

It is an amenable number.

374726421 is a deficient number, since it is larger than the sum of its proper divisors (166545089).

374726421 is a wasteful number, since it uses less digits than its factorization.

374726421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41636275 (or 41636272 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 374726421 is about 19357.8516628266. The cubic root of 374726421 is about 720.9493784044.

The spelling of 374726421 in words is "three hundred seventy-four million, seven hundred twenty-six thousand, four hundred twenty-one".