18825456240 has 100 divisors (see below), whose sum is σ = 65383620984. Its totient is φ = 5020119936.

The previous prime is 18825456239. The next prime is 18825456269. The reversal of 18825456240 is 4265452881.

18825456240 is a `hidden beast` number, since 1 + 8 + 8 + 2 + 545 + 62 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1446102 + ... + 1459061.

Almost surely, 2^18825456240 is an apocalyptic number.

18825456240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18825456240 is an abundant number, since it is smaller than the sum of its proper divisors (46558164744).

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

18825456240 is a wasteful number, since it uses less digits than its factorization.

18825456240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905188 (or 2905173 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 18825456240 in words is "eighteen billion, eight hundred twenty-five million, four hundred fifty-six thousand, two hundred forty".