1872522648 has 96 divisors (see below), whose sum is σ = 5255312400. Its totient is φ = 601945344.

The previous prime is 1872522643. The next prime is 1872522653. The reversal of 1872522648 is 8462252781.

1872522648 is a `hidden beast` number, since 1 + 87 + 2 + 522 + 6 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (1872522643) and next prime (1872522653).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872522643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220986 + ... + 229302.

Almost surely, 2^1872522648 is an apocalyptic number.

1872522648 is a gapful number since it is divisible by the number (18) 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 1872522648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2627656200).

1872522648 is an abundant number, since it is smaller than the sum of its proper divisors (3382789752).

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

1872522648 is a wasteful number, since it uses less digits than its factorization.

1872522648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441 (or 8434 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 1872522648 is about 43272.6547371432. The cubic root of 1872522648 is about 1232.5627155471.

The spelling of 1872522648 in words is "one billion, eight hundred seventy-two million, five hundred twenty-two thousand, six hundred forty-eight".