2493502309440 has 336 divisors, whose sum is σ = 8729017817520. Its totient is φ = 653147504640.

The previous prime is 2493502309411. The next prime is 2493502309451. The reversal of 2493502309440 is 449032053942.

2493502309440 is a `hidden beast` number, since 2 + 493 + 5 + 0 + 2 + 30 + 94 + 40 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 222429197376 + 2271073112064 = 471624^2 + 1507008^2 .

It is a super-2 number, since 2×2493502309440² (a number of 26 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135088692 + ... + 135107148.

It is an arithmetic number, because the mean of its divisors is an integer number (25979219695).

Almost surely, 2^{2493502309440} is an apocalyptic number.

2493502309440 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 2493502309440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4364508908760).

2493502309440 is an abundant number, since it is smaller than the sum of its proper divisors (6235515508080).

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

2493502309440 is a wasteful number, since it uses less digits than its factorization.

2493502309440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19310 (or 19297 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 2493502309440 in words is "two trillion, four hundred ninety-three billion, five hundred two million, three hundred nine thousand, four hundred forty".