245851992 has 48 divisors (see below), whose sum is σ = 666666000. Its totient is φ = 81850176.

The previous prime is 245851987. The next prime is 245851993. The reversal of 245851992 is 299158542.

It is a happy number.

245851992 is a `hidden beast` number, since 2 + 45 + 8 + 519 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245851993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78309 + ... + 81387.

It is an arithmetic number, because the mean of its divisors is an integer number (13888875).

Almost surely, 2^245851992 is an apocalyptic number.

It is an amenable number.

245851992 is an abundant number, since it is smaller than the sum of its proper divisors (420814008).

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

245851992 is a wasteful number, since it uses less digits than its factorization.

245851992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200 (or 4193 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 245851992 is about 15679.6681087324. The cubic root of 245851992 is about 626.4569674608.

The spelling of 245851992 in words is "two hundred forty-five million, eight hundred fifty-one thousand, nine hundred ninety-two".