187242798 has 16 divisors (see below), whose sum is σ = 379226880. Its totient is φ = 61624056.

The previous prime is 187242779. The next prime is 187242817. The reversal of 187242798 is 897242781.

It is an interprime number because it is at equal distance from previous prime (187242779) and next prime (187242817).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197040 + ... + 197987.

It is an arithmetic number, because the mean of its divisors is an integer number (23701680).

Almost surely, 2^187242798 is an apocalyptic number.

187242798 is an abundant number, since it is smaller than the sum of its proper divisors (191984082).

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

187242798 is a wasteful number, since it uses less digits than its factorization.

187242798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395111.

The product of its digits is 451584, while the sum is 48.

The square root of 187242798 is about 13683.6690255209. The cubic root of 187242798 is about 572.0952923704.

The spelling of 187242798 in words is "one hundred eighty-seven million, two hundred forty-two thousand, seven hundred ninety-eight".