28917342 has 24 divisors (see below), whose sum is σ = 62879544. Its totient is φ = 9604464.

The previous prime is 28917337. The next prime is 28917347. The reversal of 28917342 is 24371982.

It is an interprime number because it is at equal distance from previous prime (28917337) and next prime (28917347).

It is a junction number, because it is equal to n+sod(n) for n = 28917297 and 28917306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28917347) 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, 2533 + ... + 8015.

It is an arithmetic number, because the mean of its divisors is an integer number (2619981).

Almost surely, 2^28917342 is an apocalyptic number.

28917342 is an abundant number, since it is smaller than the sum of its proper divisors (33962202).

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

28917342 is a wasteful number, since it uses less digits than its factorization.

28917342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784 (or 5781 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 28917342 is about 5377.4847280118. The cubic root of 28917342 is about 306.9395064487.

The spelling of 28917342 in words is "twenty-eight million, nine hundred seventeen thousand, three hundred forty-two".