1406532400445 has 4 divisors (see below), whose sum is σ = 1687838880540. Its totient is φ = 1125225920352.

The previous prime is 1406532400439. The next prime is 1406532400451. The reversal of 1406532400445 is 5440042356041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1406532400439) and next prime (1406532400451).

It can be written as a sum of positive squares in 2 ways, for example, as 330180099769 + 1076352300676 = 574613^2 + 1037474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406532400445 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1406532400399 and 1406532400408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140653240040 + ... + 140653240049.

It is an arithmetic number, because the mean of its divisors is an integer number (421959720135).

Almost surely, 2^{1406532400445} is an apocalyptic number.

It is an amenable number.

1406532400445 is a deficient number, since it is larger than the sum of its proper divisors (281306480095).

1406532400445 is an equidigital number, since it uses as much as digits as its factorization.

1406532400445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281306480094.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 1406532400445 its reverse (5440042356041), we get a palindrome (6846574756486).

The spelling of 1406532400445 in words is "one trillion, four hundred six billion, five hundred thirty-two million, four hundred thousand, four hundred forty-five".