1352672840 has 16 divisors (see below), whose sum is σ = 3043513980. Its totient is φ = 541069120.

The previous prime is 1352672773. The next prime is 1352672843. The reversal of 1352672840 is 482762531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1342343044 + 10329796 = 36638^2 + 3214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1352672794 and 1352672803.

It is not an unprimeable number, because it can be changed into a prime (1352672843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16908371 + ... + 16908450.

Almost surely, 2^1352672840 is an apocalyptic number.

1352672840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352672840 is an abundant number, since it is smaller than the sum of its proper divisors (1690841140).

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

1352672840 is a wasteful number, since it uses less digits than its factorization.

1352672840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33816832 (or 33816828 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1352672840 is about 36778.7009014729. The cubic root of 1352672840 is about 1105.9383633234.

The spelling of 1352672840 in words is "one billion, three hundred fifty-two million, six hundred seventy-two thousand, eight hundred forty".