1381126442 has 8 divisors (see below), whose sum is σ = 2071888896. Its totient is φ = 690496812.

The previous prime is 1381126441. The next prime is 1381126447. The reversal of 1381126442 is 2446211831.

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 = 1381126399 and 1381126408.

It is not an unprimeable number, because it can be changed into a prime (1381126441) 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, 938 + ... + 52565.

It is an arithmetic number, because the mean of its divisors is an integer number (258986112).

Almost surely, 2^1381126442 is an apocalyptic number.

1381126442 is a deficient number, since it is larger than the sum of its proper divisors (690762454).

1381126442 is a wasteful number, since it uses less digits than its factorization.

1381126442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66412.

The product of its digits is 9216, while the sum is 32.

The square root of 1381126442 is about 37163.5095490186. The cubic root of 1381126442 is about 1113.6391239545.

The spelling of 1381126442 in words is "one billion, three hundred eighty-one million, one hundred twenty-six thousand, four hundred forty-two".