1230436398 has 16 divisors (see below), whose sum is σ = 2463314256. Its totient is φ = 409738560.

The previous prime is 1230436391. The next prime is 1230436399. The reversal of 1230436398 is 8936340321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230436391) 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, 95143 + ... + 107298.

It is an arithmetic number, because the mean of its divisors is an integer number (153957141).

Almost surely, 2^1230436398 is an apocalyptic number.

1230436398 is an abundant number, since it is smaller than the sum of its proper divisors (1232877858).

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

1230436398 is a wasteful number, since it uses less digits than its factorization.

1230436398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203459.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1230436398 is about 35077.5768547373. The cubic root of 1230436398 is about 1071.5679687532.

The spelling of 1230436398 in words is "one billion, two hundred thirty million, four hundred thirty-six thousand, three hundred ninety-eight".