378575418 has 64 divisors (see below), whose sum is σ = 861719040. Its totient is φ = 109916352.

The previous prime is 378575413. The next prime is 378575419. The reversal of 378575418 is 814575873.

It is a happy number.

It is a super-2 number, since 2×378575418² = 286638694227749448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378575413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691821 + ... + 692367.

It is an arithmetic number, because the mean of its divisors is an integer number (13464360).

Almost surely, 2^378575418 is an apocalyptic number.

378575418 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 378575418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430859520).

378575418 is an abundant number, since it is smaller than the sum of its proper divisors (483143622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378575418 is a wasteful number, since it uses less digits than its factorization.

378575418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051.

The product of its digits is 940800, while the sum is 48.

The square root of 378575418 is about 19457.0146219815. The cubic root of 378575418 is about 723.4093819302.

The spelling of 378575418 in words is "three hundred seventy-eight million, five hundred seventy-five thousand, four hundred eighteen".