652390 has 8 divisors (see below), whose sum is σ = 1174320. Its totient is φ = 260952.

The previous prime is 652381. The next prime is 652411. The reversal of 652390 is 93256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×652390² = 851225424200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32610 + ... + 32629.

It is an arithmetic number, because the mean of its divisors is an integer number (146790).

2⁶⁵²³⁹⁰ is an apocalyptic number.

652390 is a deficient number, since it is larger than the sum of its proper divisors (521930).

652390 is a wasteful number, since it uses less digits than its factorization.

652390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65246.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 652390 is about 807.7066299096. The cubic root of 652390 is about 86.7299504917.

The spelling of 652390 in words is "six hundred fifty-two thousand, three hundred ninety".