1124342140 has 12 divisors (see below), whose sum is σ = 2361118536. Its totient is φ = 449736848.

The previous prime is 1124342137. The next prime is 1124342147. The reversal of 1124342140 is 412434211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124342147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28108534 + ... + 28108573.

It is an arithmetic number, because the mean of its divisors is an integer number (196759878).

Almost surely, 2^1124342140 is an apocalyptic number.

1124342140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1124342140 is an abundant number, since it is smaller than the sum of its proper divisors (1236776396).

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

1124342140 is a wasteful number, since it uses less digits than its factorization.

1124342140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56217116 (or 56217114 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1124342140 is about 33531.2114305463. The cubic root of 1124342140 is about 1039.8391454872.

Adding to 1124342140 its reverse (412434211), we get a palindrome (1536776351).

The spelling of 1124342140 in words is "one billion, one hundred twenty-four million, three hundred forty-two thousand, one hundred forty".