24398140 has 48 divisors (see below), whose sum is σ = 55756512. Its totient is φ = 8914176.

The previous prime is 24398137. The next prime is 24398159. The reversal of 24398140 is 4189342.

It is a super-3 number, since 3×24398140³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27382 + ... + 28258.

It is an arithmetic number, because the mean of its divisors is an integer number (1161594).

Almost surely, 2^24398140 is an apocalyptic number.

24398140 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 24398140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27878256).

24398140 is an abundant number, since it is smaller than the sum of its proper divisors (31358372).

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

24398140 is a wasteful number, since it uses less digits than its factorization.

24398140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 24398140 is about 4939.4473375065. The cubic root of 24398140 is about 290.0362221897.

The spelling of 24398140 in words is "twenty-four million, three hundred ninety-eight thousand, one hundred forty".