1421301232440 has 48 divisors (see below), whose sum is σ = 4619229006600. Its totient is φ = 379013661888.

The previous prime is 1421301232427. The next prime is 1421301232583. The reversal of 1421301232440 is 442321031241.

1421301232440 is a `hidden beast` number, since 1 + 4 + 213 + 0 + 1 + 2 + 3 + 2 + 440 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1974029130 + ... + 1974029849.

Almost surely, 2^{1421301232440} is an apocalyptic number.

1421301232440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421301232440 is an abundant number, since it is smaller than the sum of its proper divisors (3197927774160).

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

1421301232440 is a wasteful number, since it uses less digits than its factorization.

1421301232440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948058996 (or 3948058989 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1421301232440 its reverse (442321031241), we get a palindrome (1863622263681).

The spelling of 1421301232440 in words is "one trillion, four hundred twenty-one billion, three hundred one million, two hundred thirty-two thousand, four hundred forty".