84042249 has 16 divisors (see below), whose sum is σ = 113326080. Its totient is φ = 55397520.

The previous prime is 84042229. The next prime is 84042289. The reversal of 84042249 is 94224048.

It is not a de Polignac number, because 84042249 - 2¹³ = 84034057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84042229) 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, 135462 + ... + 136080.

It is an arithmetic number, because the mean of its divisors is an integer number (7082880).

Almost surely, 2^84042249 is an apocalyptic number.

It is an amenable number.

84042249 is a deficient number, since it is larger than the sum of its proper divisors (29283831).

84042249 is a wasteful number, since it uses less digits than its factorization.

84042249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 84042249 is about 9167.4559720786. The cubic root of 84042249 is about 438.0253264061.

The spelling of 84042249 in words is "eighty-four million, forty-two thousand, two hundred forty-nine".