394699420 has 24 divisors (see below), whose sum is σ = 846506304. Its totient is φ = 154520256.

The previous prime is 394699411. The next prime is 394699429. The reversal of 394699420 is 24996493.

It is an interprime number because it is at equal distance from previous prime (394699411) and next prime (394699429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394699429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209007 + ... + 210886.

It is an arithmetic number, because the mean of its divisors is an integer number (35271096).

Almost surely, 2^394699420 is an apocalyptic number.

It is an amenable number.

394699420 is an abundant number, since it is smaller than the sum of its proper divisors (451806884).

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

394699420 is a wasteful number, since it uses less digits than its factorization.

394699420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419949 (or 419947 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 394699420 is about 19867.0435646575. The cubic root of 394699420 is about 733.5372330168.

The spelling of 394699420 in words is "three hundred ninety-four million, six hundred ninety-nine thousand, four hundred twenty".