64212042 has 16 divisors (see below), whose sum is σ = 128644992. Its totient is φ = 21367200.

The previous prime is 64212007. The next prime is 64212047. The reversal of 64212042 is 24021246.

It is not an unprimeable number, because it can be changed into a prime (64212047) 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, 5298 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (8040312).

Almost surely, 2^64212042 is an apocalyptic number.

64212042 is an abundant number, since it is smaller than the sum of its proper divisors (64432950).

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

64212042 is a wasteful number, since it uses less digits than its factorization.

64212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18413.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 64212042 is about 8013.2416661424. The cubic root of 64212042 is about 400.4412671958.

Adding to 64212042 its reverse (24021246), we get a palindrome (88233288).

The spelling of 64212042 in words is "sixty-four million, two hundred twelve thousand, forty-two".