28732942 has 16 divisors (see below), whose sum is σ = 50588640. Its totient is φ = 11981088.

The previous prime is 28732931. The next prime is 28732967. The reversal of 28732942 is 24923782.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

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, 27217 + ... + 28252.

It is an arithmetic number, because the mean of its divisors is an integer number (3161790).

Almost surely, 2^28732942 is an apocalyptic number.

28732942 is a deficient number, since it is larger than the sum of its proper divisors (21855698).

28732942 is a wasteful number, since it uses less digits than its factorization.

28732942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55515.

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

The square root of 28732942 is about 5360.3117446656. The cubic root of 28732942 is about 306.2856844716.

The spelling of 28732942 in words is "twenty-eight million, seven hundred thirty-two thousand, nine hundred forty-two".