2391400 has 48 divisors (see below), whose sum is σ = 6071040. Its totient is φ = 868800.

The previous prime is 2391349. The next prime is 2391401. The reversal of 2391400 is 41932.

2391400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2391401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657 + ... + 2743.

It is an arithmetic number, because the mean of its divisors is an integer number (126480).

2^2391400 is an apocalyptic number.

2391400 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 2391400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035520).

2391400 is an abundant number, since it is smaller than the sum of its proper divisors (3679640).

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

2391400 is a wasteful number, since it uses less digits than its factorization.

2391400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2391400 is about 1546.4152094441. The cubic root of 2391400 is about 133.7264785260.

The spelling of 2391400 in words is "two million, three hundred ninety-one thousand, four hundred".