245351540 has 48 divisors (see below), whose sum is σ = 596934912. Its totient is φ = 82964736.

The previous prime is 245351539. The next prime is 245351543. The reversal of 245351540 is 45153542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245351543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1784 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (12436144).

Almost surely, 2^245351540 is an apocalyptic number.

245351540 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 245351540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298467456).

245351540 is an abundant number, since it is smaller than the sum of its proper divisors (351583372).

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

245351540 is a wasteful number, since it uses less digits than its factorization.

245351540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24096 (or 24094 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 245351540 is about 15663.7013505748. The cubic root of 245351540 is about 626.0316104443.

The spelling of 245351540 in words is "two hundred forty-five million, three hundred fifty-one thousand, five hundred forty".