394880629 has 64 divisors (see below), whose sum is σ = 522547200. Its totient is φ = 292723200.

The previous prime is 394880621. The next prime is 394880639. The reversal of 394880629 is 926088493.

It is not a de Polignac number, because 394880629 - 2³ = 394880621 is a prime.

It is a super-2 number, since 2×394880629² = 311861422318871282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394880621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4436817 + ... + 4436905.

It is an arithmetic number, because the mean of its divisors is an integer number (8164800).

Almost surely, 2^394880629 is an apocalyptic number.

It is an amenable number.

394880629 is a deficient number, since it is larger than the sum of its proper divisors (127666571).

394880629 is a wasteful number, since it uses less digits than its factorization.

394880629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 394880629 is about 19871.6035840090. The cubic root of 394880629 is about 733.6494730362.

The spelling of 394880629 in words is "three hundred ninety-four million, eight hundred eighty thousand, six hundred twenty-nine".