1396404278142 has 64 divisors (see below), whose sum is σ = 3037410192384. Its totient is φ = 426191639040.

The previous prime is 1396404278123. The next prime is 1396404278147. The reversal of 1396404278142 is 2418724046931.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396404278147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35875063 + ... + 35913965.

It is an arithmetic number, because the mean of its divisors is an integer number (47459534256).

Almost surely, 2^{1396404278142} is an apocalyptic number.

1396404278142 is an abundant number, since it is smaller than the sum of its proper divisors (1641005914242).

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

1396404278142 is a wasteful number, since it uses less digits than its factorization.

1396404278142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48473.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 1396404278142 in words is "one trillion, three hundred ninety-six billion, four hundred four million, two hundred seventy-eight thousand, one hundred forty-two".