2072400 has 120 divisors (see below), whose sum is σ = 7288224. Its totient is φ = 499200.

The previous prime is 2072393. The next prime is 2072423. The reversal of 2072400 is 42702.

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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2072400.

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, 13122 + ... + 13278.

2^2072400 is an apocalyptic number.

2072400 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 2072400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3644112).

2072400 is an abundant number, since it is smaller than the sum of its proper divisors (5215824).

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

2072400 is a wasteful number, since it uses less digits than its factorization.

2072400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 2072400 is about 1439.5832730342. The cubic root of 2072400 is about 127.4944249773.

The spelling of 2072400 in words is "two million, seventy-two thousand, four hundred".