1420732671138 has 48 divisors (see below), whose sum is σ = 3358615789152. Its totient is φ = 430458336000.

The previous prime is 1420732671133. The next prime is 1420732671143. The reversal of 1420732671138 is 8311762370241.

1420732671138 is a `hidden beast` number, since 1 + 4 + 207 + 326 + 7 + 113 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1420732671133) and next prime (1420732671143).

It is a junction number, because it is equal to n+sod(n) for n = 1420732671093 and 1420732671102.

It is not an unprimeable number, because it can be changed into a prime (1420732671133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 732498 + ... + 1837938.

It is an arithmetic number, because the mean of its divisors is an integer number (69971162274).

Almost surely, 2^{1420732671138} is an apocalyptic number.

1420732671138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1420732671138 is an abundant number, since it is smaller than the sum of its proper divisors (1937883118014).

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

1420732671138 is a wasteful number, since it uses less digits than its factorization.

1420732671138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111951 (or 1111948 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 1420732671138 in words is "one trillion, four hundred twenty billion, seven hundred thirty-two million, six hundred seventy-one thousand, one hundred thirty-eight".