440542629 has 12 divisors (see below), whose sum is σ = 639572076. Its totient is φ = 292203072.

The previous prime is 440542603. The next prime is 440542633. The reversal of 440542629 is 926245044.

It can be written as a sum of positive squares in 2 ways, for example, as 338633604 + 101909025 = 18402^2 + 10095^2 .

It is not a de Polignac number, because 440542629 - 2⁸ = 440542373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440542593 and 440542602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440542699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122464 + ... + 126009.

It is an arithmetic number, because the mean of its divisors is an integer number (53297673).

Almost surely, 2^440542629 is an apocalyptic number.

It is an amenable number.

440542629 is a deficient number, since it is larger than the sum of its proper divisors (199029447).

440542629 is a wasteful number, since it uses less digits than its factorization.

440542629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248676 (or 248673 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 440542629 is about 20989.1073893103. The cubic root of 440542629 is about 760.9030292075.

The spelling of 440542629 in words is "four hundred forty million, five hundred forty-two thousand, six hundred twenty-nine".