245869140 has 96 divisors (see below), whose sum is σ = 753701760. Its totient is φ = 59392000.

The previous prime is 245869111. The next prime is 245869159. The reversal of 245869140 is 41968542.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264196 + ... + 265124.

It is an arithmetic number, because the mean of its divisors is an integer number (7851060).

Almost surely, 2^245869140 is an apocalyptic number.

245869140 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 245869140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376850880).

245869140 is an abundant number, since it is smaller than the sum of its proper divisors (507832620).

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

245869140 is a wasteful number, since it uses less digits than its factorization.

245869140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 245869140 is about 15680.2149219964. The cubic root of 245869140 is about 626.4715320968.

The spelling of 245869140 in words is "two hundred forty-five million, eight hundred sixty-nine thousand, one hundred forty".