1401666333 has 32 divisors (see below), whose sum is σ = 1964531712. Its totient is φ = 887889600.

The previous prime is 1401666323. The next prime is 1401666341. The reversal of 1401666333 is 3336661041.

It is not a de Polignac number, because 1401666333 - 2¹² = 1401662237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401666294 and 1401666303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401666323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1254291 + ... + 1255407.

It is an arithmetic number, because the mean of its divisors is an integer number (61391616).

Almost surely, 2^1401666333 is an apocalyptic number.

It is an amenable number.

1401666333 is a deficient number, since it is larger than the sum of its proper divisors (562865379).

1401666333 is a wasteful number, since it uses less digits than its factorization.

1401666333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 1401666333 is about 37438.8345571814. The cubic root of 1401666333 is about 1119.1326014176.

The spelling of 1401666333 in words is "one billion, four hundred one million, six hundred sixty-six thousand, three hundred thirty-three".