53442394 has 16 divisors (see below), whose sum is σ = 81475200. Its totient is φ = 26286624.

The previous prime is 53442371. The next prime is 53442397. The reversal of 53442394 is 49324435.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53442397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64209 + ... + 65035.

It is an arithmetic number, because the mean of its divisors is an integer number (5092200).

Almost surely, 2^53442394 is an apocalyptic number.

53442394 is a deficient number, since it is larger than the sum of its proper divisors (28032806).

53442394 is a wasteful number, since it uses less digits than its factorization.

53442394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317.

The product of its digits is 51840, while the sum is 34.

The square root of 53442394 is about 7310.4304934798. The cubic root of 53442394 is about 376.6708119035.

The spelling of 53442394 in words is "fifty-three million, four hundred forty-two thousand, three hundred ninety-four".