1340693772 has 24 divisors (see below), whose sum is σ = 3412675392. Its totient is φ = 406270800.

The previous prime is 1340693743. The next prime is 1340693791. The reversal of 1340693772 is 2773960431.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5078254 + ... + 5078517.

It is an arithmetic number, because the mean of its divisors is an integer number (142194808).

Almost surely, 2^1340693772 is an apocalyptic number.

1340693772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340693772 is an abundant number, since it is smaller than the sum of its proper divisors (2071981620).

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

1340693772 is a wasteful number, since it uses less digits than its factorization.

1340693772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156789 (or 10156787 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 1340693772 is about 36615.4854125956. The cubic root of 1340693772 is about 1102.6640036564.

The spelling of 1340693772 in words is "one billion, three hundred forty million, six hundred ninety-three thousand, seven hundred seventy-two".