23154908240 has 40 divisors (see below), whose sum is σ = 53922248160. Its totient is φ = 9246980736.

The previous prime is 23154908207. The next prime is 23154908269. The reversal of 23154908240 is 4280945132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×23154908240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23154908194 and 23154908203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184274 + ... + 283313.

It is an arithmetic number, because the mean of its divisors is an integer number (1348056204).

Almost surely, 2^23154908240 is an apocalyptic number.

23154908240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23154908240 is an abundant number, since it is smaller than the sum of its proper divisors (30767339920).

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

23154908240 is a wasteful number, since it uses less digits than its factorization.

23154908240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468219 (or 468213 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 23154908240 in words is "twenty-three billion, one hundred fifty-four million, nine hundred eight thousand, two hundred forty".