1423281974400 has 3840 divisors, whose sum is σ = 6787665561600. Its totient is φ = 288446054400.

The previous prime is 1423281974383. The next prime is 1423281974441. The reversal of 1423281974400 is 44791823241.

1423281974400 is a `hidden beast` number, since 1 + 4 + 232 + 8 + 1 + 9 + 7 + 4 + 400 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 30282595177 + ... + 30282595223.

It is an arithmetic number, because the mean of its divisors is an integer number (1767621240).

Almost surely, 2^{1423281974400} is an apocalyptic number.

1423281974400 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 1423281974400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3393832780800).

1423281974400 is an abundant number, since it is smaller than the sum of its proper divisors (5364383587200).

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

1423281974400 is a wasteful number, since it uses less digits than its factorization.

1423281974400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 1423281974400 in words is "one trillion, four hundred twenty-three billion, two hundred eighty-one million, nine hundred seventy-four thousand, four hundred".