2445091272 has 192 divisors, whose sum is σ = 7636661760. Its totient is φ = 727833600.

The previous prime is 2445091261. The next prime is 2445091321. The reversal of 2445091272 is 2721905442.

2445091272 is a `hidden beast` number, since 24 + 4 + 509 + 127 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

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, 781872 + ... + 784992.

It is an arithmetic number, because the mean of its divisors is an integer number (39774280).

Almost surely, 2^2445091272 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 2445091272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3818330880).

2445091272 is an abundant number, since it is smaller than the sum of its proper divisors (5191570488).

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

2445091272 is a wasteful number, since it uses less digits than its factorization.

2445091272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186 (or 3170 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2445091272 is about 49447.8641803668. The cubic root of 2445091272 is about 1347.1988139138.

The spelling of 2445091272 in words is "two billion, four hundred forty-five million, ninety-one thousand, two hundred seventy-two".