64200442 has 16 divisors (see below), whose sum is σ = 99800064. Its totient is φ = 30942000.

The previous prime is 64200431. The next prime is 64200443. The reversal of 64200442 is 24400246.

It is not an unprimeable number, because it can be changed into a prime (64200443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14892 + ... + 18712.

It is an arithmetic number, because the mean of its divisors is an integer number (6237504).

Almost surely, 2^64200442 is an apocalyptic number.

64200442 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

64200442 is a deficient number, since it is larger than the sum of its proper divisors (35599622).

64200442 is a wasteful number, since it uses less digits than its factorization.

64200442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 64200442 is about 8012.5178314934. The cubic root of 64200442 is about 400.4171523086.

Adding to 64200442 its reverse (24400246), we get a palindrome (88600688).

The spelling of 64200442 in words is "sixty-four million, two hundred thousand, four hundred forty-two".