24149940 has 48 divisors (see below), whose sum is σ = 68584320. Its totient is φ = 6348160.

The previous prime is 24149813. The next prime is 24149941. The reversal of 24149940 is 4994142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24149941) 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, 1426 + ... + 7094.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^24149940 is an apocalyptic number.

24149940 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 24149940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34292160).

24149940 is an abundant number, since it is smaller than the sum of its proper divisors (44434380).

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

24149940 is a wasteful number, since it uses less digits than its factorization.

24149940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 24149940 is about 4914.2588454415. The cubic root of 24149940 is about 289.0493643800.

The spelling of 24149940 in words is "twenty-four million, one hundred forty-nine thousand, nine hundred forty".