390429 has 24 divisors (see below), whose sum is σ = 628992. Its totient is φ = 231840.

The previous prime is 390421. The next prime is 390433. The reversal of 390429 is 924093.

It is not a de Polignac number, because 390429 - 2³ = 390421 is a prime.

390429 is a modest number, since divided by 429 gives 39 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5464 + ... + 5534.

It is an arithmetic number, because the mean of its divisors is an integer number (26208).

2³⁹⁰⁴²⁹ is an apocalyptic number.

390429 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

390429 is a deficient number, since it is larger than the sum of its proper divisors (238563).

390429 is a wasteful number, since it uses less digits than its factorization.

390429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 390429 is about 624.8431803261. The cubic root of 390429 is about 73.0882151170.

The spelling of 390429 in words is "three hundred ninety thousand, four hundred twenty-nine".