442552461 has 16 divisors (see below), whose sum is σ = 639676800. Its totient is φ = 270532800.

The previous prime is 442552457. The next prime is 442552469. The reversal of 442552461 is 164255244.

It is not a de Polignac number, because 442552461 - 2² = 442552457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442552469) 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, 31686 + ... + 43463.

It is an arithmetic number, because the mean of its divisors is an integer number (39979800).

Almost surely, 2^442552461 is an apocalyptic number.

It is an amenable number.

442552461 is a deficient number, since it is larger than the sum of its proper divisors (197124339).

442552461 is a wasteful number, since it uses less digits than its factorization.

442552461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75316.

The product of its digits is 38400, while the sum is 33.

The square root of 442552461 is about 21036.9308835676. The cubic root of 442552461 is about 762.0583979190.

The spelling of 442552461 in words is "four hundred forty-two million, five hundred fifty-two thousand, four hundred sixty-one".