245672400 has 120 divisors (see below), whose sum is σ = 795154464. Its totient is φ = 64832000.

The previous prime is 245672393. The next prime is 245672411. The reversal of 245672400 is 4276542.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120187 + ... + 122213.

Almost surely, 2^245672400 is an apocalyptic number.

245672400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245672400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397577232).

245672400 is an abundant number, since it is smaller than the sum of its proper divisors (549482064).

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

245672400 is a wasteful number, since it uses less digits than its factorization.

245672400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 245672400 is about 15673.9401555576. The cubic root of 245672400 is about 626.3043904776.

The spelling of 245672400 in words is "two hundred forty-five million, six hundred seventy-two thousand, four hundred".