1352723720 has 32 divisors (see below), whose sum is σ = 3073187520. Its totient is φ = 535834560.

The previous prime is 1352723707. The next prime is 1352723731. The reversal of 1352723720 is 273272531.

It is a super-2 number, since 2×1352723720² = 3659722925301276800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 160046 + ... + 168285.

It is an arithmetic number, because the mean of its divisors is an integer number (96037110).

Almost surely, 2^1352723720 is an apocalyptic number.

1352723720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352723720 is an abundant number, since it is smaller than the sum of its proper divisors (1720463800).

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

1352723720 is a wasteful number, since it uses less digits than its factorization.

1352723720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328445 (or 328441 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 1352723720 is about 36779.3925996610. The cubic root of 1352723720 is about 1105.9522295584.

The spelling of 1352723720 in words is "one billion, three hundred fifty-two million, seven hundred twenty-three thousand, seven hundred twenty".