24139742 has 24 divisors (see below), whose sum is σ = 41540688. Its totient is φ = 10493120.

The previous prime is 24139741. The next prime is 24139771. The reversal of 24139742 is 24793142.

It is a junction number, because it is equal to n+sod(n) for n = 24139699 and 24139708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24139741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3398 + ... + 7734.

It is an arithmetic number, because the mean of its divisors is an integer number (1730862).

Almost surely, 2^24139742 is an apocalyptic number.

24139742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

24139742 is a deficient number, since it is larger than the sum of its proper divisors (17400946).

24139742 is a wasteful number, since it uses less digits than its factorization.

24139742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384 (or 4373 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 24139742 is about 4913.2211429977. The cubic root of 24139742 is about 289.0086722094.

The spelling of 24139742 in words is "twenty-four million, one hundred thirty-nine thousand, seven hundred forty-two".