1423450032240 has 80 divisors (see below), whose sum is σ = 4413098356128. Its totient is φ = 379551986688.

The previous prime is 1423450032233. The next prime is 1423450032271. The reversal of 1423450032240 is 422300543241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1423450032198 and 1423450032207.

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, 2416102 + ... + 2946938.

Almost surely, 2^{1423450032240} is an apocalyptic number.

1423450032240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423450032240 is an abundant number, since it is smaller than the sum of its proper divisors (2989648323888).

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

1423450032240 is a wasteful number, since it uses less digits than its factorization.

1423450032240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542026 (or 542020 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 1423450032240 its reverse (422300543241), we get a palindrome (1845750575481).

The spelling of 1423450032240 in words is "one trillion, four hundred twenty-three billion, four hundred fifty million, thirty-two thousand, two hundred forty".