450042188 has 6 divisors (see below), whose sum is σ = 787573836. Its totient is φ = 225021092.

The previous prime is 450042169. The next prime is 450042251. The reversal of 450042188 is 881240054.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56255270 + ... + 56255277.

It is an arithmetic number, because the mean of its divisors is an integer number (131262306).

Almost surely, 2^450042188 is an apocalyptic number.

It is an amenable number.

450042188 is a deficient number, since it is larger than the sum of its proper divisors (337531648).

450042188 is a wasteful number, since it uses less digits than its factorization.

450042188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112510551 (or 112510549 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 450042188 is about 21214.1977929876. The cubic root of 450042188 is about 766.3333790988. Note that the first 4 decimals are identical.

The spelling of 450042188 in words is "four hundred fifty million, forty-two thousand, one hundred eighty-eight".