394340635 has 32 divisors (see below), whose sum is σ = 546215040. Its totient is φ = 270978048.

The previous prime is 394340629. The next prime is 394340641. The reversal of 394340635 is 536043493.

It is an interprime number because it is at equal distance from previous prime (394340629) and next prime (394340641).

It is a cyclic number.

It is not a de Polignac number, because 394340635 - 2¹⁹ = 393816347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 394340594 and 394340603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51751 + ... + 58879.

It is an arithmetic number, because the mean of its divisors is an integer number (17069220).

Almost surely, 2^394340635 is an apocalyptic number.

394340635 is a deficient number, since it is larger than the sum of its proper divisors (151874405).

394340635 is a wasteful number, since it uses less digits than its factorization.

394340635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207.

The product of its (nonzero) digits is 116640, while the sum is 37.

The square root of 394340635 is about 19858.0118591968. The cubic root of 394340635 is about 733.3149018554.

The spelling of 394340635 in words is "three hundred ninety-four million, three hundred forty thousand, six hundred thirty-five".