623140 has 24 divisors (see below), whose sum is σ = 1495872. Its totient is φ = 213600.

The previous prime is 623107. The next prime is 623171. The reversal of 623140 is 41326.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086 + ... + 2365.

It is an arithmetic number, because the mean of its divisors is an integer number (62328).

2⁶²³¹⁴⁰ is an apocalyptic number.

It is an amenable number.

623140 is an abundant number, since it is smaller than the sum of its proper divisors (872732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623140 is a wasteful number, since it uses less digits than its factorization.

623140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 623140 is about 789.3921712305. The cubic root of 623140 is about 85.4138982512.

Adding to 623140 its reverse (41326), we get a palindrome (664466).

The spelling of 623140 in words is "six hundred twenty-three thousand, one hundred forty".