1325924840 has 16 divisors (see below), whose sum is σ = 2983330980. Its totient is φ = 530369920.

The previous prime is 1325924837. The next prime is 1325924879. The reversal of 1325924840 is 484295231.

It can be written as a sum of positive squares in 2 ways, for example, as 1300179364 + 25745476 = 36058^2 + 5074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1325924794 and 1325924803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16574021 + ... + 16574100.

Almost surely, 2^1325924840 is an apocalyptic number.

1325924840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325924840 is an abundant number, since it is smaller than the sum of its proper divisors (1657406140).

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

1325924840 is a wasteful number, since it uses less digits than its factorization.

1325924840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33148132 (or 33148128 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1325924840 is about 36413.2508848084. The cubic root of 1325924840 is about 1098.6001034985.

The spelling of 1325924840 in words is "one billion, three hundred twenty-five million, nine hundred twenty-four thousand, eight hundred forty".