189400419 has 12 divisors (see below), whose sum is σ = 294623056. Its totient is φ = 116554032.

The previous prime is 189400397. The next prime is 189400433. The reversal of 189400419 is 914004981.

It is not a de Polignac number, because 189400419 - 2⁷ = 189400291 is a prime.

It is a super-2 number, since 2×189400419² = 71745037434751122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189400489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809287 + ... + 809520.

Almost surely, 2^189400419 is an apocalyptic number.

189400419 is a deficient number, since it is larger than the sum of its proper divisors (105222637).

189400419 is a wasteful number, since it uses less digits than its factorization.

189400419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618826 (or 1618823 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 189400419 is about 13762.2824778450. The cubic root of 189400419 is about 574.2843462028.

The spelling of 189400419 in words is "one hundred eighty-nine million, four hundred thousand, four hundred nineteen".