24120020 has 24 divisors (see below), whose sum is σ = 51178344. Its totient is φ = 9547776.

The previous prime is 24120011. The next prime is 24120029. The reversal of 24120020 is 2002142.

It is an interprime number because it is at equal distance from previous prime (24120011) and next prime (24120029).

It can be written as a sum of positive squares in 4 ways, for example, as 188356 + 23931664 = 434^2 + 4892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24119983 and 24120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24120029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4277 + ... + 8156.

It is an arithmetic number, because the mean of its divisors is an integer number (2132431).

Almost surely, 2^24120020 is an apocalyptic number.

24120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24120020 is an abundant number, since it is smaller than the sum of its proper divisors (27058324).

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

24120020 is a wasteful number, since it uses less digits than its factorization.

24120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539 (or 12537 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 24120020 is about 4911.2136992805. The cubic root of 24120020 is about 288.9299447458.

Adding to 24120020 its reverse (2002142), we get a palindrome (26122162).

The spelling of 24120020 in words is "twenty-four million, one hundred twenty thousand, twenty".