260624464240 has 80 divisors (see below), whose sum is σ = 699373183680. Its totient is φ = 88472217600.

The previous prime is 260624464231. The next prime is 260624464241. The reversal of 260624464240 is 42464426062.

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

It is a super-2 number, since 2×260624464240² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 260624464193 and 260624464202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260624464241) 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, 2247405 + ... + 2360524.

It is an arithmetic number, because the mean of its divisors is an integer number (8742164796).

Almost surely, 2^260624464240 is an apocalyptic number.

260624464240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260624464240 is an abundant number, since it is smaller than the sum of its proper divisors (438748719440).

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

260624464240 is a wasteful number, since it uses less digits than its factorization.

260624464240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4608050 (or 4608044 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 260624464240 in words is "two hundred sixty billion, six hundred twenty-four million, four hundred sixty-four thousand, two hundred forty".