394476480 has 392 divisors, whose sum is σ = 1499158800. Its totient is φ = 98537472.

The previous prime is 394476479. The next prime is 394476491. The reversal of 394476480 is 84674493.

It is a super-2 number, since 2×394476480² = 311223386546380800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4432276 + ... + 4432364.

Almost surely, 2^394476480 is an apocalyptic number.

394476480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394476480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749579400).

394476480 is an abundant number, since it is smaller than the sum of its proper divisors (1104682320).

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

394476480 is an equidigital number, since it uses as much as digits as its factorization.

394476480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 394476480 is about 19861.4319725442. The cubic root of 394476480 is about 733.3990978671.

The spelling of 394476480 in words is "three hundred ninety-four million, four hundred seventy-six thousand, four hundred eighty".