245265540 has 96 divisors (see below), whose sum is σ = 742404096. Its totient is φ = 60142080.

The previous prime is 245265539. The next prime is 245265551. The reversal of 245265540 is 45562542.

245265540 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245265540² = 120310370222983200, which contains 22 as substring.

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, 298330 + ... + 299150.

It is an arithmetic number, because the mean of its divisors is an integer number (7733376).

Almost surely, 2^245265540 is an apocalyptic number.

245265540 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 245265540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371202048).

245265540 is an abundant number, since it is smaller than the sum of its proper divisors (497138556).

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

245265540 is a wasteful number, since it uses less digits than its factorization.

245265540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 245265540 is about 15660.9559095223. The cubic root of 245265540 is about 625.9584568919.

The spelling of 245265540 in words is "two hundred forty-five million, two hundred sixty-five thousand, five hundred forty".