18252400 has 30 divisors (see below), whose sum is σ = 43852352. Its totient is φ = 7300800.

The previous prime is 18252391. The next prime is 18252401. The reversal of 18252400 is 425281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18252401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22416 + ... + 23215.

Almost surely, 2^18252400 is an apocalyptic number.

18252400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18252400 is an abundant number, since it is smaller than the sum of its proper divisors (25599952).

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

18252400 is a wasteful number, since it uses less digits than its factorization.

18252400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45649 (or 45638 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 18252400 is about 4272.2827621776. The cubic root of 18252400 is about 263.2934120258.

Adding to 18252400 its reverse (425281), we get a palindrome (18677681).

It can be divided in two parts, 1825 and 2400, that added together give a square (4225 = 65²).

The spelling of 18252400 in words is "eighteen million, two hundred fifty-two thousand, four hundred".