64998042 has 16 divisors (see below), whose sum is σ = 130182240. Its totient is φ = 21634992.

The previous prime is 64998029. The next prime is 64998053. The reversal of 64998042 is 24089946.

It is a junction number, because it is equal to n+sod(n) for n = 64997985 and 64998003.

It is an unprimeable number.

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, 2992 + ... + 11787.

It is an arithmetic number, because the mean of its divisors is an integer number (8136390).

Almost surely, 2^64998042 is an apocalyptic number.

64998042 is an abundant number, since it is smaller than the sum of its proper divisors (65184198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64998042 is a wasteful number, since it uses less digits than its factorization.

64998042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15517.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 64998042 is about 8062.1363173789. The cubic root of 64998042 is about 402.0685385973.

It can be divided in two parts, 6499 and 8042, that added together give a palindrome (14541).

The spelling of 64998042 in words is "sixty-four million, nine hundred ninety-eight thousand, forty-two".