1342199980 has 48 divisors (see below), whose sum is σ = 3255741216. Its totient is φ = 459361280.

The previous prime is 1342199959. The next prime is 1342199981. The reversal of 1342199980 is 899912431.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1342199980.

It is not an unprimeable number, because it can be changed into a prime (1342199981) 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, 175699 + ... + 183178.

It is an arithmetic number, because the mean of its divisors is an integer number (67827942).

Almost surely, 2^1342199980 is an apocalyptic number.

1342199980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342199980 is an abundant number, since it is smaller than the sum of its proper divisors (1913541236).

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

1342199980 is a wasteful number, since it uses less digits than its factorization.

1342199980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358914 (or 358912 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 1342199980 is about 36636.0475488282. The cubic root of 1342199980 is about 1103.0767799385.

The spelling of 1342199980 in words is "one billion, three hundred forty-two million, one hundred ninety-nine thousand, nine hundred eighty".