1324739540 has 24 divisors (see below), whose sum is σ = 2803863552. Its totient is φ = 525722400.

The previous prime is 1324739497. The next prime is 1324739551. The reversal of 1324739540 is 459374231.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1324739494 and 1324739503.

It is a congruent number.

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, 258236 + ... + 263315.

It is an arithmetic number, because the mean of its divisors is an integer number (116827648).

Almost surely, 2^1324739540 is an apocalyptic number.

1324739540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324739540 is an abundant number, since it is smaller than the sum of its proper divisors (1479124012).

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

1324739540 is a wasteful number, since it uses less digits than its factorization.

1324739540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521687 (or 521685 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1324739540 is about 36396.9715773167. The cubic root of 1324739540 is about 1098.2726442847.

The spelling of 1324739540 in words is "one billion, three hundred twenty-four million, seven hundred thirty-nine thousand, five hundred forty".