134694728 has 64 divisors (see below), whose sum is σ = 297216000. Its totient is φ = 57200640.

The previous prime is 134694719. The next prime is 134694731. The reversal of 134694728 is 827496431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523976 + ... + 524232.

It is an arithmetic number, because the mean of its divisors is an integer number (4644000).

Almost surely, 2^134694728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134694728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148608000).

134694728 is an abundant number, since it is smaller than the sum of its proper divisors (162521272).

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

134694728 is a wasteful number, since it uses less digits than its factorization.

134694728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 457 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 134694728 is about 11605.8057884836. The cubic root of 134694728 is about 512.6058197513.

The spelling of 134694728 in words is "one hundred thirty-four million, six hundred ninety-four thousand, seven hundred twenty-eight".