1243200342 has 32 divisors (see below), whose sum is σ = 2500134912. Its totient is φ = 412118784.

The previous prime is 1243200341. The next prime is 1243200373. The reversal of 1243200342 is 2430023421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243200341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1285143 + ... + 1286109.

It is an arithmetic number, because the mean of its divisors is an integer number (78129216).

Almost surely, 2^1243200342 is an apocalyptic number.

1243200342 is an abundant number, since it is smaller than the sum of its proper divisors (1256934570).

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

1243200342 is a wasteful number, since it uses less digits than its factorization.

1243200342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1243200342 is about 35259.0462434820. The cubic root of 1243200342 is about 1075.2605366710.

Adding to 1243200342 its reverse (2430023421), we get a palindrome (3673223763).

The spelling of 1243200342 in words is "one billion, two hundred forty-three million, two hundred thousand, three hundred forty-two".