1406504643244 has 48 divisors (see below), whose sum is σ = 2600190996480. Its totient is φ = 664657701120.

The previous prime is 1406504643227. The next prime is 1406504643251. The reversal of 1406504643244 is 4423464056041.

It is a super-2 number, since 2×1406504643244² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 1406504643244.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83005437 + ... + 83022379.

It is an arithmetic number, because the mean of its divisors is an integer number (54170645760).

Almost surely, 2^{1406504643244} is an apocalyptic number.

It is an amenable number.

1406504643244 is a deficient number, since it is larger than the sum of its proper divisors (1193686353236).

1406504643244 is a wasteful number, since it uses less digits than its factorization.

1406504643244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32590 (or 32588 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

Adding to 1406504643244 its reverse (4423464056041), we get a palindrome (5829968699285).

The spelling of 1406504643244 in words is "one trillion, four hundred six billion, five hundred four million, six hundred forty-three thousand, two hundred forty-four".