2491353072 has 160 divisors (see below), whose sum is σ = 7724783360. Its totient is φ = 764225280.

The previous prime is 2491353071. The next prime is 2491353091. The reversal of 2491353072 is 2703531942.

2491353072 is a `hidden beast` number, since 2 + 49 + 13 + 530 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491353071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3071547 + ... + 3072357.

It is an arithmetic number, because the mean of its divisors is an integer number (48279896).

Almost surely, 2^2491353072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2491353072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3862391680).

2491353072 is an abundant number, since it is smaller than the sum of its proper divisors (5233430288).

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

2491353072 is a wasteful number, since it uses less digits than its factorization.

2491353072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 2491353072 is about 49913.4558210509. The cubic root of 2491353072 is about 1355.6422425298.

The spelling of 2491353072 in words is "two billion, four hundred ninety-one million, three hundred fifty-three thousand, seventy-two".