378122459 has 36 divisors (see below), whose sum is σ = 461612376. Its totient is φ = 309566400.

The previous prime is 378122443. The next prime is 378122471. The reversal of 378122459 is 954221873.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 378122459 - 2⁴ = 378122443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378122489) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9222479 + ... + 9222519.

It is an arithmetic number, because the mean of its divisors is an integer number (12822566).

Almost surely, 2^378122459 is an apocalyptic number.

378122459 is a deficient number, since it is larger than the sum of its proper divisors (83489917).

378122459 is an equidigital number, since it uses as much as digits as its factorization.

378122459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 65 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 378122459 is about 19445.3711458537. The cubic root of 378122459 is about 723.1207511428.

The spelling of 378122459 in words is "three hundred seventy-eight million, one hundred twenty-two thousand, four hundred fifty-nine".