64184742 has 12 divisors (see below), whose sum is σ = 139066980. Its totient is φ = 21394908.

The previous prime is 64184713. The next prime is 64184777. The reversal of 64184742 is 24748146.

64184742 is a `hidden beast` number, since 641 + 8 + 4 + 7 + 4 + 2 = 666.

It is a super-2 number, since 2×64184742² = 8239362211213128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64184697 and 64184706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1782892 + ... + 1782927.

It is an arithmetic number, because the mean of its divisors is an integer number (11588915).

Almost surely, 2^64184742 is an apocalyptic number.

64184742 is an abundant number, since it is smaller than the sum of its proper divisors (74882238).

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

64184742 is a wasteful number, since it uses less digits than its factorization.

64184742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565827 (or 3565824 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 64184742 is about 8011.5380545810. The cubic root of 64184742 is about 400.3845094295.

The spelling of 64184742 in words is "sixty-four million, one hundred eighty-four thousand, seven hundred forty-two".