28081354 has 32 divisors (see below), whose sum is σ = 51004800. Its totient is φ = 11327040.

The previous prime is 28081337. The next prime is 28081387. The reversal of 28081354 is 45318082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60684 + ... + 61144.

It is an arithmetic number, because the mean of its divisors is an integer number (1593900).

Almost surely, 2^28081354 is an apocalyptic number.

28081354 is a deficient number, since it is larger than the sum of its proper divisors (22923446).

28081354 is a wasteful number, since it uses less digits than its factorization.

28081354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28081354 is about 5299.1842768487. The cubic root of 28081354 is about 303.9527064587.

The spelling of 28081354 in words is "twenty-eight million, eighty-one thousand, three hundred fifty-four".