44680681 has 2 divisors, whose sum is σ = 44680682. Its totient is φ = 44680680.

The previous prime is 44680673. The next prime is 44680687. The reversal of 44680681 is 18608644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41165056 + 3515625 = 6416^2 + 1875^2 .

It is a cyclic number.

It is not a de Polignac number, because 44680681 - 2³ = 44680673 is a prime.

It is a super-2 number, since 2×44680681² = 3992726509247522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44680681.

It is not a weakly prime, because it can be changed into another prime (44680687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22340340 + 22340341.

It is an arithmetic number, because the mean of its divisors is an integer number (22340341).

Almost surely, 2^44680681 is an apocalyptic number.

It is an amenable number.

44680681 is a deficient number, since it is larger than the sum of its proper divisors (1).

44680681 is an equidigital number, since it uses as much as digits as its factorization.

44680681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 44680681 is about 6684.3609268202. The cubic root of 44680681 is about 354.8460113730.

The spelling of 44680681 in words is "forty-four million, six hundred eighty thousand, six hundred eighty-one".