1342439680 has 216 divisors, whose sum is σ = 3614446080. Its totient is φ = 476282880.

The previous prime is 1342439641. The next prime is 1342439713. The reversal of 1342439680 is 869342431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 7028385 + ... + 7028575.

Almost surely, 2^1342439680 is an apocalyptic number.

1342439680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1342439680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807223040).

1342439680 is an abundant number, since it is smaller than the sum of its proper divisors (2272006400).

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

1342439680 is a wasteful number, since it uses less digits than its factorization.

1342439680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1342439680 is about 36639.3187709597. The cubic root of 1342439680 is about 1103.1424412333.

The spelling of 1342439680 in words is "one billion, three hundred forty-two million, four hundred thirty-nine thousand, six hundred eighty".