1340772288 has 28 divisors (see below), whose sum is σ = 3547460520. Its totient is φ = 446924032.

The previous prime is 1340772287. The next prime is 1340772319. The reversal of 1340772288 is 8822770431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340772287) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3491403 + ... + 3491786.

Almost surely, 2^1340772288 is an apocalyptic number.

It is an amenable number.

1340772288 is an abundant number, since it is smaller than the sum of its proper divisors (2206688232).

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

1340772288 is an equidigital number, since it uses as much as digits as its factorization.

1340772288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983204 (or 6983194 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 1340772288 is about 36616.5575662159. The cubic root of 1340772288 is about 1102.6855286008.

The spelling of 1340772288 in words is "one billion, three hundred forty million, seven hundred seventy-two thousand, two hundred eighty-eight".