1199934390 has 16 divisors (see below), whose sum is σ = 2879842608. Its totient is φ = 319982496.

The previous prime is 1199934371. The next prime is 1199934419. The reversal of 1199934390 is 934399911.

1199934390 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19998877 + ... + 19998936.

It is an arithmetic number, because the mean of its divisors is an integer number (179990163).

Almost surely, 2^1199934390 is an apocalyptic number.

1199934390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1199934390 is an abundant number, since it is smaller than the sum of its proper divisors (1679908218).

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

1199934390 is a wasteful number, since it uses less digits than its factorization.

1199934390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39997823.

The product of its (nonzero) digits is 236196, while the sum is 48.

The square root of 1199934390 is about 34640.0691396539. The cubic root of 1199934390 is about 1062.6392018772.

The spelling of 1199934390 in words is "one billion, one hundred ninety-nine million, nine hundred thirty-four thousand, three hundred ninety".