187472742 has 8 divisors (see below), whose sum is σ = 374945496. Its totient is φ = 62490912.

The previous prime is 187472737. The next prime is 187472743. The reversal of 187472742 is 247274781.

187472742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

187472742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 187472694 and 187472703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187472743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15622723 + ... + 15622734.

It is an arithmetic number, because the mean of its divisors is an integer number (46868187).

Almost surely, 2^187472742 is an apocalyptic number.

187472742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

187472742 is a wasteful number, since it uses less digits than its factorization.

187472742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31245462.

The product of its digits is 175616, while the sum is 42.

The square root of 187472742 is about 13692.0685800211. The cubic root of 187472742 is about 572.3293842696.

The spelling of 187472742 in words is "one hundred eighty-seven million, four hundred seventy-two thousand, seven hundred forty-two".