28946274 has 64 divisors (see below), whose sum is σ = 71165952. Its totient is φ = 7660800.

The previous prime is 28946273. The next prime is 28946303. The reversal of 28946274 is 47264982.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28946273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50409 + ... + 50979.

It is an arithmetic number, because the mean of its divisors is an integer number (1111968).

Almost surely, 2^28946274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28946274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35582976).

28946274 is an abundant number, since it is smaller than the sum of its proper divisors (42219678).

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

28946274 is a wasteful number, since it uses less digits than its factorization.

28946274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its digits is 193536, while the sum is 42.

The square root of 28946274 is about 5380.1741607498. The cubic root of 28946274 is about 307.0418373593.

The spelling of 28946274 in words is "twenty-eight million, nine hundred forty-six thousand, two hundred seventy-four".