28211342 has 8 divisors (see below), whose sum is σ = 42470616. Its totient is φ = 14054472.

The previous prime is 28211303. The next prime is 28211377. The reversal of 28211342 is 24311282.

It is a happy number.

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

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, 24908 + ... + 26015.

It is an arithmetic number, because the mean of its divisors is an integer number (5308827).

Almost surely, 2^28211342 is an apocalyptic number.

28211342 is a deficient number, since it is larger than the sum of its proper divisors (14259274).

28211342 is a wasteful number, since it uses less digits than its factorization.

28211342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51202.

The product of its digits is 768, while the sum is 23.

The square root of 28211342 is about 5311.4350226657. The cubic root of 28211342 is about 304.4209815608.

The spelling of 28211342 in words is "twenty-eight million, two hundred eleven thousand, three hundred forty-two".