1400440013420 has 24 divisors (see below), whose sum is σ = 3361056032544. Its totient is φ = 480150861696.

The previous prime is 1400440013417. The next prime is 1400440013437. The reversal of 1400440013420 is 243100440041.

It is a happy number.

It is a super-2 number, since 2×1400440013420² (a number of 25 digits) contains 22 as substring.

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, 5001571337 + ... + 5001571616.

It is an arithmetic number, because the mean of its divisors is an integer number (140044001356).

Almost surely, 2^{1400440013420} is an apocalyptic number.

1400440013420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400440013420 is an abundant number, since it is smaller than the sum of its proper divisors (1960616019124).

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

1400440013420 is a wasteful number, since it uses less digits than its factorization.

1400440013420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003142969 (or 10003142967 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1400440013420 its reverse (243100440041), we get a palindrome (1643540453461).

The spelling of 1400440013420 in words is "one trillion, four hundred billion, four hundred forty million, thirteen thousand, four hundred twenty".