457398378 has 48 divisors (see below), whose sum is σ = 1059379776. Its totient is φ = 142274880.

The previous prime is 457398373. The next prime is 457398433. The reversal of 457398378 is 873893754.

It is not an unprimeable number, because it can be changed into a prime (457398373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3501 + ... + 30447.

It is an arithmetic number, because the mean of its divisors is an integer number (22070412).

Almost surely, 2^457398378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457398378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529689888).

457398378 is an abundant number, since it is smaller than the sum of its proper divisors (601981398).

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

457398378 is a wasteful number, since it uses less digits than its factorization.

457398378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27019 (or 27016 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 457398378 is about 21386.8739651217. The cubic root of 457398378 is about 770.4862156564.

The spelling of 457398378 in words is "four hundred fifty-seven million, three hundred ninety-eight thousand, three hundred seventy-eight".