1400343412 has 12 divisors (see below), whose sum is σ = 2639108836. Its totient is φ = 646312320.

The previous prime is 1400343409. The next prime is 1400343419. The reversal of 1400343412 is 2143430041.

It can be written as a sum of positive squares in 2 ways, for example, as 716311696 + 684031716 = 26764^2 + 26154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400343419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13464789 + ... + 13464892.

Almost surely, 2^1400343412 is an apocalyptic number.

It is an amenable number.

1400343412 is a deficient number, since it is larger than the sum of its proper divisors (1238765424).

1400343412 is a wasteful number, since it uses less digits than its factorization.

1400343412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26929698 (or 26929696 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1400343412 is about 37421.1626222382. The cubic root of 1400343412 is about 1118.7804039384.

Adding to 1400343412 its reverse (2143430041), we get a palindrome (3543773453).

The spelling of 1400343412 in words is "one billion, four hundred million, three hundred forty-three thousand, four hundred twelve".