1342777880 has 64 divisors (see below), whose sum is σ = 3257906400. Its totient is φ = 496419840.

The previous prime is 1342777879. The next prime is 1342777883. The reversal of 1342777880 is 887772431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342777883) 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, 9614 + ... + 52706.

Almost surely, 2^1342777880 is an apocalyptic number.

1342777880 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 1342777880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628953200).

1342777880 is an abundant number, since it is smaller than the sum of its proper divisors (1915128520).

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

1342777880 is a wasteful number, since it uses less digits than its factorization.

1342777880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43164 (or 43160 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 1342777880 is about 36643.9337407981. The cubic root of 1342777880 is about 1103.2350714531.

The spelling of 1342777880 in words is "one billion, three hundred forty-two million, seven hundred seventy-seven thousand, eight hundred eighty".