1381042346 has 8 divisors (see below), whose sum is σ = 2072052900. Its totient is φ = 690358048.

The previous prime is 1381042339. The next prime is 1381042357. The reversal of 1381042346 is 6432401831.

It can be written as a sum of positive squares in 2 ways, for example, as 1180678321 + 200364025 = 34361^2 + 14155^2 .

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

It is a super-2 number, since 2×1381042346² = 3814555922890367432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70691 + ... + 88086.

Almost surely, 2^1381042346 is an apocalyptic number.

1381042346 is a deficient number, since it is larger than the sum of its proper divisors (691010554).

1381042346 is a wasteful number, since it uses less digits than its factorization.

1381042346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163128.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1381042346 is about 37162.3780993628. The cubic root of 1381042346 is about 1113.6165205458.

The spelling of 1381042346 in words is "one billion, three hundred eighty-one million, forty-two thousand, three hundred forty-six".