394025134 has 4 divisors (see below), whose sum is σ = 591037704. Its totient is φ = 197012566.

The previous prime is 394025113. The next prime is 394025143. The reversal of 394025134 is 431520493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431520493 = 29 ⋅14880017.

It is a junction number, because it is equal to n+sod(n) for n = 394025096 and 394025105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98506282 + ... + 98506285.

It is an arithmetic number, because the mean of its divisors is an integer number (147759426).

Almost surely, 2^394025134 is an apocalyptic number.

394025134 is a deficient number, since it is larger than the sum of its proper divisors (197012570).

394025134 is a wasteful number, since it uses less digits than its factorization.

394025134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197012569.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 394025134 is about 19850.0663474962. The cubic root of 394025134 is about 733.1192813742.

The spelling of 394025134 in words is "three hundred ninety-four million, twenty-five thousand, one hundred thirty-four".