1424340138 has 64 divisors (see below), whose sum is σ = 3289628160. Its totient is φ = 407227392.

The previous prime is 1424340107. The next prime is 1424340139. The reversal of 1424340138 is 8310434241.

It is not an unprimeable number, because it can be changed into a prime (1424340139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97956 + ... + 111552.

It is an arithmetic number, because the mean of its divisors is an integer number (51400440).

Almost surely, 2^1424340138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1424340138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644814080).

1424340138 is an abundant number, since it is smaller than the sum of its proper divisors (1865288022).

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

1424340138 is a wasteful number, since it uses less digits than its factorization.

1424340138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13711.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1424340138 is about 37740.4310786191. The cubic root of 1424340138 is about 1125.1348349994.

Adding to 1424340138 its reverse (8310434241), we get a palindrome (9734774379).

The spelling of 1424340138 in words is "one billion, four hundred twenty-four million, three hundred forty thousand, one hundred thirty-eight".