28267494 has 16 divisors (see below), whose sum is σ = 56849520. Its totient is φ = 9370080.

The previous prime is 28267493. The next prime is 28267511. The reversal of 28267494 is 49476282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28267493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11929 + ... + 14100.

It is an arithmetic number, because the mean of its divisors is an integer number (3553095).

Almost surely, 2^28267494 is an apocalyptic number.

28267494 is an abundant number, since it is smaller than the sum of its proper divisors (28582026).

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

28267494 is a wasteful number, since it uses less digits than its factorization.

28267494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26215.

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

The square root of 28267494 is about 5316.7183487561. The cubic root of 28267494 is about 304.6228214006.

It can be divided in two parts, 282 and 67494, that added together give a palindrome (67776).

The spelling of 28267494 in words is "twenty-eight million, two hundred sixty-seven thousand, four hundred ninety-four".