1406423901 has 8 divisors (see below), whose sum is σ = 1875913504. Its totient is φ = 937275120.

The previous prime is 1406423897. The next prime is 1406423917. The reversal of 1406423901 is 1093246041.

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

It is not a de Polignac number, because 1406423901 - 2² = 1406423897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406423971) 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 7 ways as a sum of consecutive naturals, for example, 75415 + ... + 92196.

It is an arithmetic number, because the mean of its divisors is an integer number (234489188).

Almost surely, 2^1406423901 is an apocalyptic number.

It is an amenable number.

1406423901 is a deficient number, since it is larger than the sum of its proper divisors (469489603).

1406423901 is a wasteful number, since it uses less digits than its factorization.

1406423901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170411.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1406423901 is about 37502.3186083207. The cubic root of 1406423901 is about 1120.3973667071.

Adding to 1406423901 its reverse (1093246041), we get a palindrome (2499669942).

The spelling of 1406423901 in words is "one billion, four hundred six million, four hundred twenty-three thousand, nine hundred one".