245009880 has 128 divisors (see below), whose sum is σ = 826200000. Its totient is φ = 64576512.

The previous prime is 245009837. The next prime is 245009903. The reversal of 245009880 is 88900542.

It is a super-2 number, since 2×245009880² = 120059682595228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 94846 + ... + 97394.

Almost surely, 2^245009880 is an apocalyptic number.

245009880 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 245009880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413100000).

245009880 is an abundant number, since it is smaller than the sum of its proper divisors (581190120).

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

245009880 is a wasteful number, since it uses less digits than its factorization.

245009880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 245009880 is about 15652.7914443399. The cubic root of 245009880 is about 625.7408856611.

The spelling of 245009880 in words is "two hundred forty-five million, nine thousand, eight hundred eighty".