240245261520 has 80 divisors (see below), whose sum is σ = 812465802432. Its totient is φ = 58241274880.

The previous prime is 240245261513. The next prime is 240245261533. The reversal of 240245261520 is 25162542042.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45498357 + ... + 45503636.

Almost surely, 2^240245261520 is an apocalyptic number.

240245261520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240245261520 is an abundant number, since it is smaller than the sum of its proper divisors (572220540912).

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

240245261520 is a wasteful number, since it uses less digits than its factorization.

240245261520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91002020 (or 91002014 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 240245261520 in words is "two hundred forty billion, two hundred forty-five million, two hundred sixty-one thousand, five hundred twenty".