374921819 has 4 divisors (see below), whose sum is σ = 380202480. Its totient is φ = 369641160.

The previous prime is 374921803. The next prime is 374921821. The reversal of 374921819 is 918129473.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 374921819 - 2⁴ = 374921803 is a prime.

It is a super-2 number, since 2×374921819² = 281132740724537522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 374921819.

It is not an unprimeable number, because it can be changed into a prime (374921839) 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, 2640224 + ... + 2640365.

It is an arithmetic number, because the mean of its divisors is an integer number (95050620).

Almost surely, 2^374921819 is an apocalyptic number.

374921819 is a deficient number, since it is larger than the sum of its proper divisors (5280661).

374921819 is an equidigital number, since it uses as much as digits as its factorization.

374921819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280660.

The product of its digits is 108864, while the sum is 44.

The square root of 374921819 is about 19362.8980010741. The cubic root of 374921819 is about 721.0746676646.

The spelling of 374921819 in words is "three hundred seventy-four million, nine hundred twenty-one thousand, eight hundred nineteen".