1400343040420 has 24 divisors (see below), whose sum is σ = 2940907959864. Its totient is φ = 560101487616.

The previous prime is 1400343040403. The next prime is 1400343040463. The reversal of 1400343040420 is 240403430041.

It can be written as a sum of positive squares in 4 ways, for example, as 185423249664 + 1214919790756 = 430608^2 + 1102234^2 .

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 7 ways as a sum of consecutive naturals, for example, 1910509 + ... + 2539828.

It is an arithmetic number, because the mean of its divisors is an integer number (122537831661).

Almost surely, 2^{1400343040420} is an apocalyptic number.

1400343040420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400343040420 is an abundant number, since it is smaller than the sum of its proper divisors (1540564919444).

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

1400343040420 is a wasteful number, since it uses less digits than its factorization.

1400343040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466079 (or 4466077 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 1400343040420 its reverse (240403430041), we get a palindrome (1640746470461).

The spelling of 1400343040420 in words is "one trillion, four hundred billion, three hundred forty-three million, forty thousand, four hundred twenty".