1401944066 has 8 divisors (see below), whose sum is σ = 2226617100. Its totient is φ = 659738368.

The previous prime is 1401944057. The next prime is 1401944081. The reversal of 1401944066 is 6604491041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1205131225 + 196812841 = 34715^2 + 14029^2 .

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

It is a super-2 number, since 2×1401944066² = 3930894328385224712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20616791 + ... + 20616858.

Almost surely, 2^1401944066 is an apocalyptic number.

1401944066 is a deficient number, since it is larger than the sum of its proper divisors (824673034).

1401944066 is a wasteful number, since it uses less digits than its factorization.

1401944066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41233668.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1401944066 is about 37442.5435300542. The cubic root of 1401944066 is about 1119.2065133325.

It can be divided in two parts, 14019 and 44066, that added together give a palindrome (58085).

The spelling of 1401944066 in words is "one billion, four hundred one million, nine hundred forty-four thousand, sixty-six".