189567240 has 32 divisors (see below), whose sum is σ = 568702080. Its totient is φ = 50551232.

The previous prime is 189567233. The next prime is 189567319. The reversal of 189567240 is 42765981.

It is a junction number, because it is equal to n+sod(n) for n = 189567192 and 189567201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789744 + ... + 789983.

It is an arithmetic number, because the mean of its divisors is an integer number (17771940).

Almost surely, 2^189567240 is an apocalyptic number.

189567240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189567240 is an abundant number, since it is smaller than the sum of its proper divisors (379134840).

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

189567240 is a wasteful number, since it uses less digits than its factorization.

189567240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579741 (or 1579737 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 189567240 is about 13768.3419481069. The cubic root of 189567240 is about 574.4529036889.

The spelling of 189567240 in words is "one hundred eighty-nine million, five hundred sixty-seven thousand, two hundred forty".