28954434 has 32 divisors (see below), whose sum is σ = 63300096. Its totient is φ = 8789760.

The previous prime is 28954421. The next prime is 28954477. The reversal of 28954434 is 43445982.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28954392 and 28954401.

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, 1417 + ... + 7740.

It is an arithmetic number, because the mean of its divisors is an integer number (1978128).

Almost surely, 2^28954434 is an apocalyptic number.

28954434 is an abundant number, since it is smaller than the sum of its proper divisors (34345662).

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

28954434 is a wasteful number, since it uses less digits than its factorization.

28954434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210.

The product of its digits is 138240, while the sum is 39.

The square root of 28954434 is about 5380.9324470764. The cubic root of 28954434 is about 307.0706865070.

The spelling of 28954434 in words is "twenty-eight million, nine hundred fifty-four thousand, four hundred thirty-four".