1342012140 has 72 divisors (see below), whose sum is σ = 4652313120. Its totient is φ = 306745344.

The previous prime is 1342012121. The next prime is 1342012141. The reversal of 1342012140 is 412102431.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1342012141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531285 + ... + 533804.

It is an arithmetic number, because the mean of its divisors is an integer number (64615460).

Almost surely, 2^1342012140 is an apocalyptic number.

1342012140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342012140 is an abundant number, since it is smaller than the sum of its proper divisors (3310300980).

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

1342012140 is a wasteful number, since it uses less digits than its factorization.

1342012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065111 (or 1065106 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1342012140 is about 36633.4838638096. The cubic root of 1342012140 is about 1103.0253192490.

Adding to 1342012140 its reverse (412102431), we get a palindrome (1754114571).

The spelling of 1342012140 in words is "one billion, three hundred forty-two million, twelve thousand, one hundred forty".