28348494 has 32 divisors (see below), whose sum is σ = 60144000. Its totient is φ = 8882784.

The previous prime is 28348487. The next prime is 28348499. The reversal of 28348494 is 49484382.

It is a super-2 number, since 2×28348494² = 1607274224136072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28348499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14952 + ... + 16740.

It is an arithmetic number, because the mean of its divisors is an integer number (1879500).

Almost surely, 2^28348494 is an apocalyptic number.

28348494 is an abundant number, since it is smaller than the sum of its proper divisors (31795506).

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

28348494 is a wasteful number, since it uses less digits than its factorization.

28348494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its digits is 221184, while the sum is 42.

The square root of 28348494 is about 5324.3303804328. The cubic root of 28348494 is about 304.9135076793.

The spelling of 28348494 in words is "twenty-eight million, three hundred forty-eight thousand, four hundred ninety-four".