1400043013 has 4 divisors (see below), whose sum is σ = 1403067328. Its totient is φ = 1397018700.

The previous prime is 1400043011. The next prime is 1400043019. The reversal of 1400043013 is 3103400041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1400043013 - 2¹ = 1400043011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400043011) 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, 1511463 + ... + 1512388.

It is an arithmetic number, because the mean of its divisors is an integer number (350766832).

Almost surely, 2^1400043013 is an apocalyptic number.

It is an amenable number.

1400043013 is a deficient number, since it is larger than the sum of its proper divisors (3024315).

1400043013 is an equidigital number, since it uses as much as digits as its factorization.

1400043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024314.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1400043013 is about 37417.1486487145. The cubic root of 1400043013 is about 1118.7003986706.

Adding to 1400043013 its reverse (3103400041), we get a palindrome (4503443054).

The spelling of 1400043013 in words is "one billion, four hundred million, forty-three thousand, thirteen".