420394 has 32 divisors (see below), whose sum is σ = 766080. Its totient is φ = 171072.

The previous prime is 420383. The next prime is 420397. The reversal of 420394 is 493024.

It is a super-2 number, since 2×420394² = 353462230472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11344 + ... + 11380.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2⁴²⁰³⁹⁴ is an apocalyptic number.

420394 is a deficient number, since it is larger than the sum of its proper divisors (345686).

420394 is a wasteful number, since it uses less digits than its factorization.

420394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 420394 is about 648.3779761836. The cubic root of 420394 is about 74.9121341384.

The spelling of 420394 in words is "four hundred twenty thousand, three hundred ninety-four".