189403254 has 12 divisors (see below), whose sum is σ = 410373756. Its totient is φ = 63134412.

The previous prime is 189403241. The next prime is 189403271. The reversal of 189403254 is 452304981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5261184 + ... + 5261219.

It is an arithmetic number, because the mean of its divisors is an integer number (34197813).

Almost surely, 2^189403254 is an apocalyptic number.

189403254 is an abundant number, since it is smaller than the sum of its proper divisors (220970502).

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

189403254 is a wasteful number, since it uses less digits than its factorization.

189403254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522411 (or 10522408 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 189403254 is about 13762.3854763627. The cubic root of 189403254 is about 574.2872115397.

The spelling of 189403254 in words is "one hundred eighty-nine million, four hundred three thousand, two hundred fifty-four".