28134722 has 24 divisors (see below), whose sum is σ = 53557200. Its totient is φ = 10961160.

The previous prime is 28134721. The next prime is 28134737. The reversal of 28134722 is 22743182.

It is not an unprimeable number, because it can be changed into a prime (28134721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11972 + ... + 14127.

It is an arithmetic number, because the mean of its divisors is an integer number (2231550).

Almost surely, 2^28134722 is an apocalyptic number.

28134722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28134722 is a deficient number, since it is larger than the sum of its proper divisors (25422478).

28134722 is a wasteful number, since it uses less digits than its factorization.

28134722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26126 (or 26119 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 28134722 is about 5304.2173786526. The cubic root of 28134722 is about 304.1451364340.

The spelling of 28134722 in words is "twenty-eight million, one hundred thirty-four thousand, seven hundred twenty-two".