28941242 has 16 divisors (see below), whose sum is σ = 50144832. Its totient is φ = 12381120.

The previous prime is 28941239. The next prime is 28941281. The reversal of 28941242 is 24214982.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28941199 and 28941208.

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, 38318 + ... + 39065.

It is an arithmetic number, because the mean of its divisors is an integer number (3134052).

Almost surely, 2^28941242 is an apocalyptic number.

28941242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28941242 is a deficient number, since it is larger than the sum of its proper divisors (21203590).

28941242 is a wasteful number, since it uses less digits than its factorization.

28941242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77413.

The product of its digits is 9216, while the sum is 32.

The square root of 28941242 is about 5379.7064975703. The cubic root of 28941242 is about 307.0240443489.

The spelling of 28941242 in words is "twenty-eight million, nine hundred forty-one thousand, two hundred forty-two".