1380351446 has 32 divisors (see below), whose sum is σ = 2175586560. Its totient is φ = 656064000.

The previous prime is 1380351439. The next prime is 1380351449. The reversal of 1380351446 is 6441530831.

It is a super-2 number, since 2×1380351446² = 3810740228948581832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380351449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857090 + ... + 858698.

It is an arithmetic number, because the mean of its divisors is an integer number (67987080).

Almost surely, 2^1380351446 is an apocalyptic number.

1380351446 is a deficient number, since it is larger than the sum of its proper divisors (795235114).

1380351446 is a wasteful number, since it uses less digits than its factorization.

1380351446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1380351446 is about 37153.0812450327. The cubic root of 1380351446 is about 1113.4307849924.

The spelling of 1380351446 in words is "one billion, three hundred eighty million, three hundred fifty-one thousand, four hundred forty-six".