1381046326 has 24 divisors (see below), whose sum is σ = 2299599792. Its totient is φ = 621522000.

The previous prime is 1381046287. The next prime is 1381046333. The reversal of 1381046326 is 6236401831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1381046291 and 1381046300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3810 + ... + 52693.

It is an arithmetic number, because the mean of its divisors is an integer number (95816658).

Almost surely, 2^1381046326 is an apocalyptic number.

1381046326 is a deficient number, since it is larger than the sum of its proper divisors (918553466).

1381046326 is a wasteful number, since it uses less digits than its factorization.

1381046326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56628 (or 56617 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1381046326 is about 37162.4316481040. The cubic root of 1381046326 is about 1113.6175903149.

The spelling of 1381046326 in words is "one billion, three hundred eighty-one million, forty-six thousand, three hundred twenty-six".