28734292 has 12 divisors (see below), whose sum is σ = 50594656. Its totient is φ = 14278680.

The previous prime is 28734287. The next prime is 28734319. The reversal of 28734292 is 29243782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21384 + ... + 22687.

Almost surely, 2^28734292 is an apocalyptic number.

It is an amenable number.

28734292 is a deficient number, since it is larger than the sum of its proper divisors (21860364).

28734292 is a wasteful number, since it uses less digits than its factorization.

28734292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44238 (or 44236 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 28734292 is about 5360.4376686983. The cubic root of 28734292 is about 306.2904812794.

The spelling of 28734292 in words is "twenty-eight million, seven hundred thirty-four thousand, two hundred ninety-two".