28840162 has 16 divisors (see below), whose sum is σ = 47469240. Its totient is φ = 13059072.

The previous prime is 28840153. The next prime is 28840193. The reversal of 28840162 is 26104882.

It can be written as a sum of positive squares in 4 ways, for example, as 23415921 + 5424241 = 4839^2 + 2329^2 .

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, 9087 + ... + 11842.

Almost surely, 2^28840162 is an apocalyptic number.

28840162 is a deficient number, since it is larger than the sum of its proper divisors (18629078).

28840162 is a wasteful number, since it uses less digits than its factorization.

28840162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20997.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28840162 is about 5370.3037158060. The cubic root of 28840162 is about 306.6661906630. Note that the first 3 decimals are identical.

The spelling of 28840162 in words is "twenty-eight million, eight hundred forty thousand, one hundred sixty-two".