1243641342 has 16 divisors (see below), whose sum is σ = 2487672720. Its totient is φ = 414482112.

The previous prime is 1243641323. The next prime is 1243641367. The reversal of 1243641342 is 2431463421.

1243641342 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 40384 + ... + 64172.

It is an arithmetic number, because the mean of its divisors is an integer number (155479545).

Almost surely, 2^1243641342 is an apocalyptic number.

1243641342 is an abundant number, since it is smaller than the sum of its proper divisors (1244031378).

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

1243641342 is a wasteful number, since it uses less digits than its factorization.

1243641342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32507.

The product of its digits is 13824, while the sum is 30.

The square root of 1243641342 is about 35265.2994032377. The cubic root of 1243641342 is about 1075.3876638985.

The spelling of 1243641342 in words is "one billion, two hundred forty-three million, six hundred forty-one thousand, three hundred forty-two".