1240822528 has 72 divisors (see below), whose sum is σ = 2775220560. Its totient is φ = 548720640.

The previous prime is 1240822519. The next prime is 1240822567. The reversal of 1240822528 is 8252280421.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1240822493 and 1240822502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98238 + ... + 110146.

It is an arithmetic number, because the mean of its divisors is an integer number (38544730).

Almost surely, 2^1240822528 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 1240822528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387610280).

1240822528 is an abundant number, since it is smaller than the sum of its proper divisors (1534398032).

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

1240822528 is a wasteful number, since it uses less digits than its factorization.

1240822528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11973 (or 11959 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 1240822528 is about 35225.3108999765. The cubic root of 1240822528 is about 1074.5745648077.

The spelling of 1240822528 in words is "one billion, two hundred forty million, eight hundred twenty-two thousand, five hundred twenty-eight".