8409542 has 8 divisors (see below), whose sum is σ = 12629136. Its totient is φ = 4199832.

The previous prime is 8409529. The next prime is 8409581. The reversal of 8409542 is 2459048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8409499 and 8409508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 4109.

It is an arithmetic number, because the mean of its divisors is an integer number (1578642).

Almost surely, 2^8409542 is an apocalyptic number.

8409542 is a deficient number, since it is larger than the sum of its proper divisors (4219594).

8409542 is a wasteful number, since it uses less digits than its factorization.

8409542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 8409542 is about 2899.9210334076. The cubic root of 8409542 is about 203.3562140933.

The spelling of 8409542 in words is "eight million, four hundred nine thousand, five hundred forty-two".