2490745680 has 80 divisors (see below), whose sum is σ = 8579242560. Its totient is φ = 664198272.

The previous prime is 2490745637. The next prime is 2490745729. The reversal of 2490745680 is 865470942.

It is a happy number.

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

It is a super-3 number, since 3×2490745680³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 574402 + ... + 578721.

It is an arithmetic number, because the mean of its divisors is an integer number (107240532).

Almost surely, 2^2490745680 is an apocalyptic number.

2490745680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2490745680 is an abundant number, since it is smaller than the sum of its proper divisors (6088496880).

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

2490745680 is a wasteful number, since it uses less digits than its factorization.

2490745680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153145 (or 1153133 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 2490745680 is about 49907.3709986811. The cubic root of 2490745680 is about 1355.5320650274.

The spelling of 2490745680 in words is "two billion, four hundred ninety million, seven hundred forty-five thousand, six hundred eighty".