440462642 has 4 divisors (see below), whose sum is σ = 660693966. Its totient is φ = 220231320.

The previous prime is 440462599. The next prime is 440462653. The reversal of 440462642 is 246264044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 421111441 + 19351201 = 20521^2 + 4399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440462599 and 440462608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115659 + ... + 110115662.

Almost surely, 2^440462642 is an apocalyptic number.

440462642 is a deficient number, since it is larger than the sum of its proper divisors (220231324).

440462642 is a wasteful number, since it uses less digits than its factorization.

440462642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220231323.

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 440462642 is about 20987.2018620873. The cubic root of 440462642 is about 760.8569753712.

The spelling of 440462642 in words is "four hundred forty million, four hundred sixty-two thousand, six hundred forty-two".