63442405 has 32 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 45212160.

The previous prime is 63442397. The next prime is 63442447. The reversal of 63442405 is 50424436.

63442405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63442405 - 2³ = 63442397 is a prime.

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 272169 + ... + 272401.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^63442405 is an apocalyptic number.

63442405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63442405 is a deficient number, since it is larger than the sum of its proper divisors (21471515).

63442405 is a wasteful number, since it uses less digits than its factorization.

63442405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 63442405 is about 7965.0740737296. The cubic root of 63442405 is about 398.8349537124.

The spelling of 63442405 in words is "sixty-three million, four hundred forty-two thousand, four hundred five".