1423539198 has 24 divisors (see below), whose sum is σ = 3198570648. Its totient is φ = 474512904.

The previous prime is 1423539193. The next prime is 1423539233. The reversal of 1423539198 is 8919353241.

It is a happy number.

1423539198 is a `hidden beast` number, since 1 + 4 + 23 + 539 + 1 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423539193) 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, 1464061 + ... + 1465032.

It is an arithmetic number, because the mean of its divisors is an integer number (133273777).

Almost surely, 2^1423539198 is an apocalyptic number.

1423539198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1423539198 is an abundant number, since it is smaller than the sum of its proper divisors (1775031450).

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

1423539198 is an equidigital number, since it uses as much as digits as its factorization.

1423539198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929110 (or 2929098 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 1423539198 is about 37729.8184199182. The cubic root of 1423539198 is about 1124.9238988522.

The spelling of 1423539198 in words is "one billion, four hundred twenty-three million, five hundred thirty-nine thousand, one hundred ninety-eight".