1406130261644 has 24 divisors (see below), whose sum is σ = 2623027814400. Its totient is φ = 657630539280.

The previous prime is 1406130261643. The next prime is 1406130261661. The reversal of 1406130261644 is 4461620316041.

It is a super-2 number, since 2×1406130261644² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 1406130261598 and 1406130261607.

It is not an unprimeable number, because it can be changed into a prime (1406130261643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117093452 + ... + 117105459.

It is an arithmetic number, because the mean of its divisors is an integer number (109292825600).

Almost surely, 2^{1406130261644} is an apocalyptic number.

It is an amenable number.

1406130261644 is a deficient number, since it is larger than the sum of its proper divisors (1216897552756).

1406130261644 is a wasteful number, since it uses less digits than its factorization.

1406130261644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234199013 (or 234199011 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 1406130261644 its reverse (4461620316041), we get a palindrome (5867750577685).

The spelling of 1406130261644 in words is "one trillion, four hundred six billion, one hundred thirty million, two hundred sixty-one thousand, six hundred forty-four".