442412501 has 16 divisors (see below), whose sum is σ = 465174528. Its totient is φ = 420260400.

The previous prime is 442412479. The next prime is 442412507. The reversal of 442412501 is 105214244.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442412501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442412507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404966 + ... + 406056.

It is an arithmetic number, because the mean of its divisors is an integer number (29073408).

Almost surely, 2^442412501 is an apocalyptic number.

It is an amenable number.

442412501 is a deficient number, since it is larger than the sum of its proper divisors (22762027).

442412501 is a wasteful number, since it uses less digits than its factorization.

442412501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 442412501 is about 21033.6040896466. The cubic root of 442412501 is about 761.9780541944.

Adding to 442412501 its reverse (105214244), we get a palindrome (547626745).

The spelling of 442412501 in words is "four hundred forty-two million, four hundred twelve thousand, five hundred one".