64724142 has 16 divisors (see below), whose sum is σ = 147940992. Its totient is φ = 18492600.

The previous prime is 64724141. The next prime is 64724167. The reversal of 64724142 is 24142746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64724141) 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, 770484 + ... + 770567.

It is an arithmetic number, because the mean of its divisors is an integer number (9246312).

Almost surely, 2^64724142 is an apocalyptic number.

64724142 is an abundant number, since it is smaller than the sum of its proper divisors (83216850).

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

64724142 is a wasteful number, since it uses less digits than its factorization.

64724142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541063.

The product of its digits is 10752, while the sum is 30.

The square root of 64724142 is about 8045.1315713293. The cubic root of 64724142 is about 401.5029747607.

Adding to 64724142 its reverse (24142746), we get a palindrome (88866888).

It can be divided in two parts, 64 and 724142, that added together give a triangular number (724206 = T₁₂₀₃).

The spelling of 64724142 in words is "sixty-four million, seven hundred twenty-four thousand, one hundred forty-two".