440477461 has 2 divisors, whose sum is σ = 440477462. Its totient is φ = 440477460.

The previous prime is 440477417. The next prime is 440477501. The reversal of 440477461 is 164774044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421029361 + 19448100 = 20519^2 + 4410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440477461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440477461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440471461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220238730 + 220238731.

It is an arithmetic number, because the mean of its divisors is an integer number (220238731).

Almost surely, 2^440477461 is an apocalyptic number.

It is an amenable number.

440477461 is a deficient number, since it is larger than the sum of its proper divisors (1).

440477461 is an equidigital number, since it uses as much as digits as its factorization.

440477461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 440477461 is about 20987.5549076113. The cubic root of 440477461 is about 760.8655080759.

The spelling of 440477461 in words is "four hundred forty million, four hundred seventy-seven thousand, four hundred sixty-one".