1400130431644 has 24 divisors (see below), whose sum is σ = 2800287953120. Its totient is φ = 600050094336.

The previous prime is 1400130431621. The next prime is 1400130431663. The reversal of 1400130431644 is 4461340310041.

It is a super-2 number, since 2×1400130431644² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4024264 + ... + 4358320.

Almost surely, 2^{1400130431644} is an apocalyptic number.

1400130431644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1400130431644 is an abundant number, since it is smaller than the sum of its proper divisors (1400157521476).

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

1400130431644 is a wasteful number, since it uses less digits than its factorization.

1400130431644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483757 (or 483755 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 1400130431644 its reverse (4461340310041), we get a palindrome (5861470741685).

The spelling of 1400130431644 in words is "one trillion, four hundred billion, one hundred thirty million, four hundred thirty-one thousand, six hundred forty-four".