28458958 has 24 divisors (see below), whose sum is σ = 48971664. Its totient is φ = 12371040.

The previous prime is 28458953. The next prime is 28458973. The reversal of 28458958 is 85985482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28458953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3010 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (2040486).

Almost surely, 2^28458958 is an apocalyptic number.

28458958 is a deficient number, since it is larger than the sum of its proper divisors (20512706).

28458958 is a wasteful number, since it uses less digits than its factorization.

28458958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160 (or 5149 counting only the distinct ones).

The product of its digits is 921600, while the sum is 49.

The square root of 28458958 is about 5334.6938056462. The cubic root of 28458958 is about 305.3090408752.

The spelling of 28458958 in words is "twenty-eight million, four hundred fifty-eight thousand, nine hundred fifty-eight".