24789438 has 12 divisors (see below), whose sum is σ = 53710488. Its totient is φ = 8263140.

The previous prime is 24789431. The next prime is 24789481. The reversal of 24789438 is 83498742.

It is a super-2 number, since 2×24789438² = 1229032472711688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 24789393 and 24789402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24789431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688578 + ... + 688613.

It is an arithmetic number, because the mean of its divisors is an integer number (4475874).

Almost surely, 2^24789438 is an apocalyptic number.

24789438 is an abundant number, since it is smaller than the sum of its proper divisors (28921050).

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

24789438 is a wasteful number, since it uses less digits than its factorization.

24789438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377199 (or 1377196 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 24789438 is about 4978.8992759444. The cubic root of 24789438 is about 291.5785422293.

The spelling of 24789438 in words is "twenty-four million, seven hundred eighty-nine thousand, four hundred thirty-eight".