1342102140 has 72 divisors (see below), whose sum is σ = 4111406208. Its totient is φ = 354345600.

The previous prime is 1342102103. The next prime is 1342102169. The reversal of 1342102140 is 412012431.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18732 + ... + 55091.

It is an arithmetic number, because the mean of its divisors is an integer number (57102864).

Almost surely, 2^1342102140 is an apocalyptic number.

1342102140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342102140 is an abundant number, since it is smaller than the sum of its proper divisors (2769304068).

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

1342102140 is a wasteful number, since it uses less digits than its factorization.

1342102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73939 (or 73934 counting only the distinct ones).

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

The square root of 1342102140 is about 36634.7122276128. The cubic root of 1342102140 is about 1103.0499762688.

Adding to 1342102140 its reverse (412012431), we get a palindrome (1754114571).

The spelling of 1342102140 in words is "one billion, three hundred forty-two million, one hundred two thousand, one hundred forty".