24139000 has 64 divisors (see below), whose sum is σ = 57283200. Its totient is φ = 9520000.

The previous prime is 24138979. The next prime is 24139007. The reversal of 24139000 is 93142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24139007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100881 + ... + 101119.

It is an arithmetic number, because the mean of its divisors is an integer number (895050).

Almost surely, 2^24139000 is an apocalyptic number.

24139000 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 24139000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28641600).

24139000 is an abundant number, since it is smaller than the sum of its proper divisors (33144200).

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

24139000 is a wasteful number, since it uses less digits than its factorization.

24139000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 347 counting only the distinct ones).

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

The square root of 24139000 is about 4913.1456318737. The cubic root of 24139000 is about 289.0057110257.

The spelling of 24139000 in words is "twenty-four million, one hundred thirty-nine thousand".