28949076 has 144 divisors (see below), whose sum is σ = 85612800. Its totient is φ = 8491392.

The previous prime is 28949069. The next prime is 28949087. The reversal of 28949076 is 67094982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 366405 + ... + 366483.

Almost surely, 2^28949076 is an apocalyptic number.

28949076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28949076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42806400).

28949076 is an abundant number, since it is smaller than the sum of its proper divisors (56663724).

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

28949076 is a wasteful number, since it uses less digits than its factorization.

28949076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 28949076 is about 5380.4345549407. The cubic root of 28949076 is about 307.0517442587.

The spelling of 28949076 in words is "twenty-eight million, nine hundred forty-nine thousand, seventy-six".