20466400 has 36 divisors (see below), whose sum is σ = 49965552. Its totient is φ = 8186240.

The previous prime is 20466377. The next prime is 20466437. The reversal of 20466400 is 466402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11992 + ... + 13591.

It is an arithmetic number, because the mean of its divisors is an integer number (1387932).

Almost surely, 2^20466400 is an apocalyptic number.

20466400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20466400 is an abundant number, since it is smaller than the sum of its proper divisors (29499152).

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

20466400 is a wasteful number, since it uses less digits than its factorization.

20466400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25603 (or 25590 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20466400 is about 4523.9805481456. The cubic root of 20466400 is about 273.5355764096.

The spelling of 20466400 in words is "twenty million, four hundred sixty-six thousand, four hundred".