390029 has 4 divisors (see below), whose sum is σ = 391776. Its totient is φ = 388284.

The previous prime is 390001. The next prime is 390043. The reversal of 390029 is 920093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920093 = 107 ⋅8599.

It is a cyclic number.

It is not a de Polignac number, because 390029 - 2⁸ = 389773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389986 and 390013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479 + ... + 1004.

It is an arithmetic number, because the mean of its divisors is an integer number (97944).

2³⁹⁰⁰²⁹ is an apocalyptic number.

It is an amenable number.

390029 is a deficient number, since it is larger than the sum of its proper divisors (1747).

390029 is a wasteful number, since it uses less digits than its factorization.

390029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 390029 is about 624.5230179905. The cubic root of 390029 is about 73.0632466202.

The spelling of 390029 in words is "three hundred ninety thousand, twenty-nine".