1342069920 has 144 divisors (see below), whose sum is σ = 4703779080. Its totient is φ = 348198912.

The previous prime is 1342069909. The next prime is 1342069961. The reversal of 1342069920 is 299602431.

It can be written as a sum of positive squares in 4 ways, for example, as 1336926096 + 5143824 = 36564^2 + 2268^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 40686 + ... + 65874.

Almost surely, 2^1342069920 is an apocalyptic number.

1342069920 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 1342069920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2351889540).

1342069920 is an abundant number, since it is smaller than the sum of its proper divisors (3361709160).

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

1342069920 is a wasteful number, since it uses less digits than its factorization.

1342069920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25247 (or 25236 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1342069920 is about 36634.2724781044. The cubic root of 1342069920 is about 1103.0411491824.

The spelling of 1342069920 in words is "one billion, three hundred forty-two million, sixty-nine thousand, nine hundred twenty".