1380424426 has 8 divisors (see below), whose sum is σ = 2071844964. Its totient is φ = 689809440.

The previous prime is 1380424403. The next prime is 1380424427. The reversal of 1380424426 is 6244240831.

It can be written as a sum of positive squares in 2 ways, for example, as 1376484201 + 3940225 = 37101^2 + 1985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1380424391 and 1380424400.

It is not an unprimeable number, because it can be changed into a prime (1380424427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197085 + ... + 203968.

Almost surely, 2^1380424426 is an apocalyptic number.

1380424426 is a deficient number, since it is larger than the sum of its proper divisors (691420538).

1380424426 is a wasteful number, since it uses less digits than its factorization.

1380424426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402776.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 1380424426 is about 37154.0633847766. The cubic root of 1380424426 is about 1113.4504072287.

The spelling of 1380424426 in words is "one billion, three hundred eighty million, four hundred twenty-four thousand, four hundred twenty-six".