2491195392 has 224 divisors, whose sum is σ = 8440521600. Its totient is φ = 711327744.

The previous prime is 2491195387. The next prime is 2491195397. The reversal of 2491195392 is 2935911942.

2491195392 is a `hidden beast` number, since 24 + 91 + 1 + 9 + 539 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2491195387) and next prime (2491195397).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×2491195392² = 12412108962244067328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2491195397) 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, 1547484 + ... + 1549092.

It is an arithmetic number, because the mean of its divisors is an integer number (37680900).

Almost surely, 2^2491195392 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 2491195392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4220260800).

2491195392 is an abundant number, since it is smaller than the sum of its proper divisors (5949326208).

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

2491195392 is an equidigital number, since it uses as much as digits as its factorization.

2491195392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1621 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 2491195392 is about 49911.8762620681. The cubic root of 2491195392 is about 1355.6136419832.

The spelling of 2491195392 in words is "two billion, four hundred ninety-one million, one hundred ninety-five thousand, three hundred ninety-two".