1406347444 has 6 divisors (see below), whose sum is σ = 2461108034. Its totient is φ = 703173720.

The previous prime is 1406347427. The next prime is 1406347447. The reversal of 1406347444 is 4447436041.

It can be written as a sum of positive squares in only one way, i.e., 1180747044 + 225600400 = 34362^2 + 15020^2 .

It is a super-3 number, since 3×1406347444³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406347447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175793427 + ... + 175793434.

Almost surely, 2^1406347444 is an apocalyptic number.

It is an amenable number.

1406347444 is a deficient number, since it is larger than the sum of its proper divisors (1054760590).

1406347444 is a wasteful number, since it uses less digits than its factorization.

1406347444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351586865 (or 351586863 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 1406347444 is about 37501.2992308267. The cubic root of 1406347444 is about 1120.3770637307.

The spelling of 1406347444 in words is "one billion, four hundred six million, three hundred forty-seven thousand, four hundred forty-four".