64018734 has 16 divisors (see below), whose sum is σ = 137886672. Its totient is φ = 19698048.

The previous prime is 64018711. The next prime is 64018763. The reversal of 64018734 is 43781046.

It is a junction number, because it is equal to n+sod(n) for n = 64018695 and 64018704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410299 + ... + 410454.

It is an arithmetic number, because the mean of its divisors is an integer number (8617917).

Almost surely, 2^64018734 is an apocalyptic number.

64018734 is an abundant number, since it is smaller than the sum of its proper divisors (73867938).

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

64018734 is a wasteful number, since it uses less digits than its factorization.

64018734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820771.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64018734 is about 8001.1707893283. The cubic root of 64018734 is about 400.0390253591.

The spelling of 64018734 in words is "sixty-four million, eighteen thousand, seven hundred thirty-four".