1400436431442 has 48 divisors (see below), whose sum is σ = 3065039436888. Its totient is φ = 462081926400.

The previous prime is 1400436431389. The next prime is 1400436431447. The reversal of 1400436431442 is 2441346340041.

1400436431442 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 4 + 3 + 643 + 1 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1224698568921 + 175737862521 = 1106661^2 + 419211^2 .

It is a super-2 number, since 2×1400436431442² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400436431397 and 1400436431406.

It is not an unprimeable number, because it can be changed into a prime (1400436431447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7862038 + ... + 8038190.

Almost surely, 2^{1400436431442} is an apocalyptic number.

1400436431442 is an abundant number, since it is smaller than the sum of its proper divisors (1664603005446).

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

1400436431442 is a wasteful number, since it uses less digits than its factorization.

1400436431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180635 (or 180632 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 1400436431442 in words is "one trillion, four hundred billion, four hundred thirty-six million, four hundred thirty-one thousand, four hundred forty-two".