189417630 has 16 divisors (see below), whose sum is σ = 454602384. Its totient is φ = 50511360.

The previous prime is 189417617. The next prime is 189417637. The reversal of 189417630 is 36714981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189417637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3156931 + ... + 3156990.

It is an arithmetic number, because the mean of its divisors is an integer number (28412649).

Almost surely, 2^189417630 is an apocalyptic number.

189417630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189417630 is an abundant number, since it is smaller than the sum of its proper divisors (265184754).

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

189417630 is a wasteful number, since it uses less digits than its factorization.

189417630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313931.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 189417630 is about 13762.9077596270. The cubic root of 189417630 is about 574.3017409347.

The spelling of 189417630 in words is "one hundred eighty-nine million, four hundred seventeen thousand, six hundred thirty".