394576494 has 128 divisors (see below), whose sum is σ = 963809280. Its totient is φ = 106444800.

The previous prime is 394576493. The next prime is 394576499. The reversal of 394576494 is 494675493.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394576493) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1191909 + ... + 1192239.

It is an arithmetic number, because the mean of its divisors is an integer number (7529760).

Almost surely, 2^394576494 is an apocalyptic number.

394576494 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 394576494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481904640).

394576494 is an abundant number, since it is smaller than the sum of its proper divisors (569232786).

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

394576494 is a wasteful number, since it uses less digits than its factorization.

394576494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426.

The product of its digits is 3265920, while the sum is 51.

The square root of 394576494 is about 19863.9496072659. The cubic root of 394576494 is about 733.4610736611.

The spelling of 394576494 in words is "three hundred ninety-four million, five hundred seventy-six thousand, four hundred ninety-four".