1400344412 has 12 divisors (see below), whose sum is σ = 2469310536. Its totient is φ = 694827120.

The previous prime is 1400344411. The next prime is 1400344469. The reversal of 1400344412 is 2144430041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400344411) 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 3 ways as a sum of consecutive naturals, for example, 1335683 + ... + 1336730.

It is an arithmetic number, because the mean of its divisors is an integer number (205775878).

Almost surely, 2^1400344412 is an apocalyptic number.

It is an amenable number.

1400344412 is a deficient number, since it is larger than the sum of its proper divisors (1068966124).

1400344412 is a wasteful number, since it uses less digits than its factorization.

1400344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672548 (or 2672546 counting only the distinct ones).

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

The square root of 1400344412 is about 37421.1759836593. The cubic root of 1400344412 is about 1118.7806702493.

Adding to 1400344412 its reverse (2144430041), we get a palindrome (3544774453).

The spelling of 1400344412 in words is "one billion, four hundred million, three hundred forty-four thousand, four hundred twelve".