28036742 has 8 divisors (see below), whose sum is σ = 44268600. Its totient is φ = 13280544.

The previous prime is 28036733. The next prime is 28036777. The reversal of 28036742 is 24763082.

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 = 28036699 and 28036708.

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, 368867 + ... + 368942.

It is an arithmetic number, because the mean of its divisors is an integer number (5533575).

Almost surely, 2^28036742 is an apocalyptic number.

28036742 is a deficient number, since it is larger than the sum of its proper divisors (16231858).

28036742 is a wasteful number, since it uses less digits than its factorization.

28036742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737830.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28036742 is about 5294.9732766087. The cubic root of 28036742 is about 303.7916609806.

The spelling of 28036742 in words is "twenty-eight million, thirty-six thousand, seven hundred forty-two".