23045205040 has 180 divisors, whose sum is σ = 63777136752. Its totient is φ = 7734904320.

The previous prime is 23045205031. The next prime is 23045205091. The reversal of 23045205040 is 4050254032.

23045205040 = 233² + 234² + ... + 4104².

It is a junction number, because it is equal to n+sod(n) for n = 23045204996 and 23045205014.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1628877 + ... + 1642963.

Almost surely, 2^23045205040 is an apocalyptic number.

23045205040 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 23045205040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31888568376).

23045205040 is an abundant number, since it is smaller than the sum of its proper divisors (40731931712).

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

23045205040 is a wasteful number, since it uses less digits than its factorization.

23045205040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14148 (or 14118 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 23045205040 its reverse (4050254032), we get a palindrome (27095459072).

The spelling of 23045205040 in words is "twenty-three billion, forty-five million, two hundred five thousand, forty".