28988034 has 16 divisors (see below), whose sum is σ = 61027680. Its totient is φ = 9154080.

The previous prime is 28987997. The next prime is 28988039. The reversal of 28988034 is 43088982.

It is a happy number.

It is a super-2 number, since 2×28988034² = 1680612230370312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28988039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127027 + ... + 127254.

It is an arithmetic number, because the mean of its divisors is an integer number (3814230).

Almost surely, 2^28988034 is an apocalyptic number.

28988034 is an abundant number, since it is smaller than the sum of its proper divisors (32039646).

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

28988034 is a wasteful number, since it uses less digits than its factorization.

28988034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254305.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 28988034 is about 5384.0536772956. The cubic root of 28988034 is about 307.1894200390.

The spelling of 28988034 in words is "twenty-eight million, nine hundred eighty-eight thousand, thirty-four".