451238379 has 4 divisors (see below), whose sum is σ = 601651176. Its totient is φ = 300825584.

The previous prime is 451238377. The next prime is 451238413. The reversal of 451238379 is 973832154.

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 451238379 - 2¹ = 451238377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 451238379.

It is not an unprimeable number, because it can be changed into a prime (451238371) 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, 75206394 + ... + 75206399.

It is an arithmetic number, because the mean of its divisors is an integer number (150412794).

Almost surely, 2^451238379 is an apocalyptic number.

451238379 is a deficient number, since it is larger than the sum of its proper divisors (150412797).

451238379 is a wasteful number, since it uses less digits than its factorization.

451238379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150412796.

The product of its digits is 181440, while the sum is 42.

The square root of 451238379 is about 21242.3722545294. The cubic root of 451238379 is about 767.0117378154.

The spelling of 451238379 in words is "four hundred fifty-one million, two hundred thirty-eight thousand, three hundred seventy-nine".