1340042112 has 48 divisors (see below), whose sum is σ = 3856114080. Its totient is φ = 446680320.

The previous prime is 1340042111. The next prime is 1340042113. The reversal of 1340042112 is 2112400431.

It is an interprime number because it is at equal distance from previous prime (1340042111) and next prime (1340042113).

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340042111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 580464 + ... + 582767.

It is an arithmetic number, because the mean of its divisors is an integer number (80335710).

Almost surely, 2^1340042112 is an apocalyptic number.

1340042112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340042112 is an abundant number, since it is smaller than the sum of its proper divisors (2516071968).

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

1340042112 is a wasteful number, since it uses less digits than its factorization.

1340042112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163251 (or 1163236 counting only the distinct ones).

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

The square root of 1340042112 is about 36606.5856370135. The cubic root of 1340042112 is about 1102.4853204271.

Adding to 1340042112 its reverse (2112400431), we get a palindrome (3452442543).

The spelling of 1340042112 in words is "one billion, three hundred forty million, forty-two thousand, one hundred twelve".