1641421346 has 8 divisors (see below), whose sum is σ = 2462362524. Its totient is φ = 820633840.

The previous prime is 1641421319. The next prime is 1641421351. The reversal of 1641421346 is 6431241461.

It can be written as a sum of positive squares in 2 ways, for example, as 1621270225 + 20151121 = 40265^2 + 4489^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365 + ... + 57648.

Almost surely, 2^1641421346 is an apocalyptic number.

1641421346 is a deficient number, since it is larger than the sum of its proper divisors (820941178).

1641421346 is a wasteful number, since it uses less digits than its factorization.

1641421346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76836.

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

The square root of 1641421346 is about 40514.4584808930. The cubic root of 1641421346 is about 1179.6142917286.

The spelling of 1641421346 in words is "one billion, six hundred forty-one million, four hundred twenty-one thousand, three hundred forty-six".