189079454 has 16 divisors (see below), whose sum is σ = 292674816. Its totient is φ = 91555200.

The previous prime is 189079453. The next prime is 189079459. The reversal of 189079454 is 454970981.

It is a junction number, because it is equal to n+sod(n) for n = 189079399 and 189079408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189079453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2819 + ... + 19649.

It is an arithmetic number, because the mean of its divisors is an integer number (18292176).

Almost surely, 2^189079454 is an apocalyptic number.

189079454 is a deficient number, since it is larger than the sum of its proper divisors (103595362).

189079454 is a wasteful number, since it uses less digits than its factorization.

189079454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17011.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 189079454 is about 13750.6164952703. The cubic root of 189079454 is about 573.9597615728.

It can be divided in two parts, 18907 and 9454, that multiplied together give a triangular number (178746778 = T₁₈₉₀₇).

The spelling of 189079454 in words is "one hundred eighty-nine million, seventy-nine thousand, four hundred fifty-four".