394608542 has 4 divisors (see below), whose sum is σ = 591912816. Its totient is φ = 197304270.

The previous prime is 394608527. The next prime is 394608551. The reversal of 394608542 is 245806493.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 394608542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98652134 + ... + 98652137.

It is an arithmetic number, because the mean of its divisors is an integer number (147978204).

Almost surely, 2^394608542 is an apocalyptic number.

394608542 is a deficient number, since it is larger than the sum of its proper divisors (197304274).

394608542 is a wasteful number, since it uses less digits than its factorization.

394608542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197304273.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 394608542 is about 19864.7562783942. The cubic root of 394608542 is about 733.4809306677.

The spelling of 394608542 in words is "three hundred ninety-four million, six hundred eight thousand, five hundred forty-two".