394489419 has 32 divisors (see below), whose sum is σ = 567336960. Its totient is φ = 243079200.

The previous prime is 394489411. The next prime is 394489429. The reversal of 394489419 is 914984493.

It is a happy number.

It is not a de Polignac number, because 394489419 - 2³ = 394489411 is a prime.

It is a super-2 number, since 2×394489419² = 311243803405915122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394489411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432574 + ... + 433484.

It is an arithmetic number, because the mean of its divisors is an integer number (17729280).

Almost surely, 2^394489419 is an apocalyptic number.

394489419 is a deficient number, since it is larger than the sum of its proper divisors (172847541).

394489419 is a wasteful number, since it uses less digits than its factorization.

394489419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111.

The product of its digits is 1119744, while the sum is 51.

The square root of 394489419 is about 19861.7577016738. The cubic root of 394489419 is about 733.4071163824.

The spelling of 394489419 in words is "three hundred ninety-four million, four hundred eighty-nine thousand, four hundred nineteen".