1240825828 has 24 divisors (see below), whose sum is σ = 2372499360. Its totient is φ = 563142720.

The previous prime is 1240825823. The next prime is 1240825829. The reversal of 1240825828 is 8285280421.

It is not an unprimeable number, because it can be changed into a prime (1240825823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7600 + ... + 50392.

It is an arithmetic number, because the mean of its divisors is an integer number (98854140).

Almost surely, 2^1240825828 is an apocalyptic number.

It is an amenable number.

1240825828 is a deficient number, since it is larger than the sum of its proper divisors (1131673532).

1240825828 is a wasteful number, since it uses less digits than its factorization.

1240825828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43467 (or 43465 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 1240825828 is about 35225.3577412636. The cubic root of 1240825828 is about 1074.5755174266.

The spelling of 1240825828 in words is "one billion, two hundred forty million, eight hundred twenty-five thousand, eight hundred twenty-eight".