1623252 has 12 divisors (see below), whose sum is σ = 3787616. Its totient is φ = 541080.

The previous prime is 1623233. The next prime is 1623263. The reversal of 1623252 is 2523261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67624 + ... + 67647.

2^1623252 is an apocalyptic number.

1623252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1623252 is an abundant number, since it is smaller than the sum of its proper divisors (2164364).

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

1623252 is a wasteful number, since it uses less digits than its factorization.

1623252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135278 (or 135276 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 1623252 is about 1274.0690719109. The cubic root of 1623252 is about 117.5245640510.

Subtracting 1623252 from its reverse (2523261), we obtain a palindrome (900009).

The spelling of 1623252 in words is "one million, six hundred twenty-three thousand, two hundred fifty-two".