28942534 has 8 divisors (see below), whose sum is σ = 45967608. Its totient is φ = 13620000.

The previous prime is 28942531. The next prime is 28942541. The reversal of 28942534 is 43524982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28942493 and 28942502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28942531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425592 + ... + 425659.

It is an arithmetic number, because the mean of its divisors is an integer number (5745951).

Almost surely, 2^28942534 is an apocalyptic number.

28942534 is a deficient number, since it is larger than the sum of its proper divisors (17025074).

28942534 is a wasteful number, since it uses less digits than its factorization.

28942534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851270.

The product of its digits is 69120, while the sum is 37.

The square root of 28942534 is about 5379.8265771305. The cubic root of 28942534 is about 307.0286130214.

The spelling of 28942534 in words is "twenty-eight million, nine hundred forty-two thousand, five hundred thirty-four".