28737042 has 16 divisors (see below), whose sum is σ = 57664992. Its totient is φ = 9547200.

The previous prime is 28736989. The next prime is 28737061. The reversal of 28737042 is 24073782.

It is a junction number, because it is equal to n+sod(n) for n = 28736994 and 28737012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5959 + ... + 9642.

It is an arithmetic number, because the mean of its divisors is an integer number (3604062).

Almost surely, 2^28737042 is an apocalyptic number.

28737042 is an abundant number, since it is smaller than the sum of its proper divisors (28927950).

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

28737042 is a wasteful number, since it uses less digits than its factorization.

28737042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15913.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 28737042 is about 5360.6941714670. The cubic root of 28737042 is about 306.3002520897.

The spelling of 28737042 in words is "twenty-eight million, seven hundred thirty-seven thousand, forty-two".