23433022440 has 256 divisors, whose sum is σ = 79368076800. Its totient is φ = 6149025792.

The previous prime is 23433022421. The next prime is 23433022469. The reversal of 23433022440 is 4422033432.

23433022440 is a `hidden beast` number, since 2 + 3 + 433 + 0 + 224 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19159669 + ... + 19160891.

It is an arithmetic number, because the mean of its divisors is an integer number (310031550).

Almost surely, 2^23433022440 is an apocalyptic number.

23433022440 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 23433022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39684038400).

23433022440 is an abundant number, since it is smaller than the sum of its proper divisors (55935054360).

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

23433022440 is a wasteful number, since it uses less digits than its factorization.

23433022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 23433022440 its reverse (4422033432), we get a palindrome (27855055872).

The spelling of 23433022440 in words is "twenty-three billion, four hundred thirty-three million, twenty-two thousand, four hundred forty".