1339266420 has 96 divisors (see below), whose sum is σ = 4216947840. Its totient is φ = 352823040.

The previous prime is 1339266413. The next prime is 1339266421. The reversal of 1339266420 is 246629331.

1339266420 is a `hidden beast` number, since 1 + 3 + 3 + 9 + 2 + 6 + 642 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339266421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29880 + ... + 59760.

It is an arithmetic number, because the mean of its divisors is an integer number (43926540).

Almost surely, 2^1339266420 is an apocalyptic number.

1339266420 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 1339266420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108473920).

1339266420 is an abundant number, since it is smaller than the sum of its proper divisors (2877681420).

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

1339266420 is a wasteful number, since it uses less digits than its factorization.

1339266420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29982 (or 29974 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1339266420 is about 36595.9891244929. The cubic root of 1339266420 is about 1102.2725524603.

The spelling of 1339266420 in words is "one billion, three hundred thirty-nine million, two hundred sixty-six thousand, four hundred twenty".