374343809 has 4 divisors (see below), whose sum is σ = 427821504. Its totient is φ = 320866116.

The previous prime is 374343799. The next prime is 374343811. The reversal of 374343809 is 908343473.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-374343809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (374343829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26738837 + ... + 26738850.

It is an arithmetic number, because the mean of its divisors is an integer number (106955376).

Almost surely, 2^374343809 is an apocalyptic number.

It is an amenable number.

374343809 is a deficient number, since it is larger than the sum of its proper divisors (53477695).

374343809 is an equidigital number, since it uses as much as digits as its factorization.

374343809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53477694.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 374343809 is about 19347.9665339797. The cubic root of 374343809 is about 720.7039212706.

The spelling of 374343809 in words is "three hundred seventy-four million, three hundred forty-three thousand, eight hundred nine".