1420674318720 has 640 divisors, whose sum is σ = 5310417024000. Its totient is φ = 361256620032.

The previous prime is 1420674318677. The next prime is 1420674318751. The reversal of 1420674318720 is 278134760241.

1420674318720 is a `hidden beast` number, since 1 + 4 + 206 + 7 + 431 + 8 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×1420674318720² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 428041221 + ... + 428044539.

It is an arithmetic number, because the mean of its divisors is an integer number (8297526600).

Almost surely, 2^{1420674318720} is an apocalyptic number.

1420674318720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420674318720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2655208512000).

1420674318720 is an abundant number, since it is smaller than the sum of its proper divisors (3889742705280).

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

1420674318720 is a wasteful number, since it uses less digits than its factorization.

1420674318720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3711 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 1420674318720 in words is "one trillion, four hundred twenty billion, six hundred seventy-four million, three hundred eighteen thousand, seven hundred twenty".