1423402243520 has 112 divisors (see below), whose sum is σ = 3425899196448. Its totient is φ = 563252121600.

The previous prime is 1423402243517. The next prime is 1423402243537. The reversal of 1423402243520 is 253422043241.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39962039 + ... + 39997641.

Almost surely, 2^{1423402243520} is an apocalyptic number.

1423402243520 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 1423402243520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712949598224).

1423402243520 is an abundant number, since it is smaller than the sum of its proper divisors (2002496952928).

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

1423402243520 is a wasteful number, since it uses less digits than its factorization.

1423402243520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36958 (or 36948 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 1423402243520 its reverse (253422043241), we get a palindrome (1676824286761).

The spelling of 1423402243520 in words is "one trillion, four hundred twenty-three billion, four hundred two million, two hundred forty-three thousand, five hundred twenty".