10780644 has 24 divisors (see below), whose sum is σ = 28748608. Its totient is φ = 3080160.

The previous prime is 10780643. The next prime is 10780661. The reversal of 10780644 is 44608701.

It is not an unprimeable number, because it can be changed into a prime (10780643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64087 + ... + 64254.

Almost surely, 2^10780644 is an apocalyptic number.

10780644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10780644 is an abundant number, since it is smaller than the sum of its proper divisors (17967964).

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

10780644 is a wasteful number, since it uses less digits than its factorization.

10780644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128355 (or 128353 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 10780644 is about 3283.3891027413. The cubic root of 10780644 is about 220.9097588885.

The spelling of 10780644 in words is "ten million, seven hundred eighty thousand, six hundred forty-four".