1420832137840 has 80 divisors (see below), whose sum is σ = 3326771448000. Its totient is φ = 564320618496.

The previous prime is 1420832137831. The next prime is 1420832137859. The reversal of 1420832137840 is 487312380241.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36682324 + ... + 36721036.

It is an arithmetic number, because the mean of its divisors is an integer number (41584643100).

Almost surely, 2^{1420832137840} is an apocalyptic number.

1420832137840 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 1420832137840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663385724000).

1420832137840 is an abundant number, since it is smaller than the sum of its proper divisors (1905939310160).

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

1420832137840 is a wasteful number, since it uses less digits than its factorization.

1420832137840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41954 (or 41948 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 1420832137840 in words is "one trillion, four hundred twenty billion, eight hundred thirty-two million, one hundred thirty-seven thousand, eight hundred forty".