28901018 has 16 divisors (see below), whose sum is σ = 45372096. Its totient is φ = 13780800.

The previous prime is 28901017. The next prime is 28901027. The reversal of 28901018 is 81010982.

It is a super-3 number, since 3×28901018³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28901017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19193 + ... + 20643.

It is an arithmetic number, because the mean of its divisors is an integer number (2835756).

Almost surely, 2^28901018 is an apocalyptic number.

28901018 is a deficient number, since it is larger than the sum of its proper divisors (16471078).

28901018 is a wasteful number, since it uses less digits than its factorization.

28901018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 28901018 is about 5375.9667037659. The cubic root of 28901018 is about 306.8817392259.

The spelling of 28901018 in words is "twenty-eight million, nine hundred one thousand, eighteen".