2489400 has 96 divisors (see below), whose sum is σ = 8593200. Its totient is φ = 662400.

The previous prime is 2489381. The next prime is 2489411. The reversal of 2489400 is 49842.

It is a super-2 number, since 2×2489400² = 12394224720000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5170 + ... + 5630.

2^2489400 is an apocalyptic number.

2489400 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 2489400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4296600).

2489400 is an abundant number, since it is smaller than the sum of its proper divisors (6103800).

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

2489400 is a wasteful number, since it uses less digits than its factorization.

2489400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2489400 is about 1577.7832550766. The cubic root of 2489400 is about 135.5287902405.

The spelling of 2489400 in words is "two million, four hundred eighty-nine thousand, four hundred".