394098406 has 32 divisors (see below), whose sum is σ = 651168000. Its totient is φ = 177772320.

The previous prime is 394098401. The next prime is 394098409. The reversal of 394098406 is 604890493.

It is a super-2 number, since 2×394098406² = 310627107223481672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394098401) 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, 304621 + ... + 305911.

It is an arithmetic number, because the mean of its divisors is an integer number (20349000).

Almost surely, 2^394098406 is an apocalyptic number.

394098406 is a deficient number, since it is larger than the sum of its proper divisors (257069594).

394098406 is a wasteful number, since it uses less digits than its factorization.

394098406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 394098406 is about 19851.9118978500. The cubic root of 394098406 is about 733.1647216114.

The spelling of 394098406 in words is "three hundred ninety-four million, ninety-eight thousand, four hundred six".