24225139940 has 12 divisors (see below), whose sum is σ = 50872793916. Its totient is φ = 9690055968.

The previous prime is 24225139933. The next prime is 24225139949. The reversal of 24225139940 is 4993152242.

It can be written as a sum of positive squares in 2 ways, for example, as 11818298944 + 12406840996 = 108712^2 + 111386^2 .

It is a super-2 number, since 2×24225139940² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24225139949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605628479 + ... + 605628518.

It is an arithmetic number, because the mean of its divisors is an integer number (4239399493).

Almost surely, 2^24225139940 is an apocalyptic number.

24225139940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24225139940 is an abundant number, since it is smaller than the sum of its proper divisors (26647653976).

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

24225139940 is a wasteful number, since it uses less digits than its factorization.

24225139940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211257006 (or 1211257004 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 24225139940 in words is "twenty-four billion, two hundred twenty-five million, one hundred thirty-nine thousand, nine hundred forty".