28374774 has 16 divisors (see below), whose sum is σ = 56803008. Its totient is φ = 9449352.

The previous prime is 28374763. The next prime is 28374791. The reversal of 28374774 is 47747382.

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, 9129 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (3550188).

Almost surely, 2^28374774 is an apocalyptic number.

28374774 is an abundant number, since it is smaller than the sum of its proper divisors (28428234).

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

28374774 is a wasteful number, since it uses less digits than its factorization.

28374774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459.

The product of its digits is 263424, while the sum is 42.

The square root of 28374774 is about 5326.7977247123. The cubic root of 28374774 is about 305.0077002445.

It can be divided in two parts, 283 and 74774, that added together give a palindrome (75057).

The spelling of 28374774 in words is "twenty-eight million, three hundred seventy-four thousand, seven hundred seventy-four".