1406612218720 has 48 divisors (see below), whose sum is σ = 3325839017760. Its totient is φ = 562184756224.

The previous prime is 1406612218667. The next prime is 1406612218721. The reversal of 1406612218720 is 278122166041.

It is a super-2 number, since 2×1406612218720² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406612218721) 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, 3398485 + ... + 3789844.

It is an arithmetic number, because the mean of its divisors is an integer number (69288312870).

Almost surely, 2^{1406612218720} is an apocalyptic number.

1406612218720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406612218720 is an abundant number, since it is smaller than the sum of its proper divisors (1919226799040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406612218720 is a wasteful number, since it uses less digits than its factorization.

1406612218720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189567 (or 7189559 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 1406612218720 in words is "one trillion, four hundred six billion, six hundred twelve million, two hundred eighteen thousand, seven hundred twenty".