1423341140 has 48 divisors (see below), whose sum is σ = 3252183312. Its totient is φ = 520114176.

The previous prime is 1423341097. The next prime is 1423341149. The reversal of 1423341140 is 411433241.

It can be written as a sum of positive squares in 8 ways, for example, as 7474756 + 1415866384 = 2734^2 + 37628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423341149) 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, 2999 + ... + 53438.

It is an arithmetic number, because the mean of its divisors is an integer number (67753819).

Almost surely, 2^1423341140 is an apocalyptic number.

1423341140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423341140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626091656).

1423341140 is an abundant number, since it is smaller than the sum of its proper divisors (1828842172).

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

1423341140 is a wasteful number, since it uses less digits than its factorization.

1423341140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56556 (or 56554 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1423341140 is about 37727.1936406619. The cubic root of 1423341140 is about 1124.8717259507.

Adding to 1423341140 its reverse (411433241), we get a palindrome (1834774381).

The spelling of 1423341140 in words is "one billion, four hundred twenty-three million, three hundred forty-one thousand, one hundred forty".