1400240343 has 16 divisors (see below), whose sum is σ = 1986858720. Its totient is φ = 874116096.

The previous prime is 1400240341. The next prime is 1400240351. The reversal of 1400240343 is 3430420041.

It is not a de Polignac number, because 1400240343 - 2¹ = 1400240341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400240341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59638 + ... + 79731.

It is an arithmetic number, because the mean of its divisors is an integer number (124178670).

Almost surely, 2^1400240343 is an apocalyptic number.

1400240343 is a deficient number, since it is larger than the sum of its proper divisors (586618377).

1400240343 is a wasteful number, since it uses less digits than its factorization.

1400240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139586.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1400240343 is about 37419.7854483427. The cubic root of 1400240343 is about 1118.7529548604.

Adding to 1400240343 its reverse (3430420041), we get a palindrome (4830660384).

It can be divided in two parts, 14002 and 40343, that added together give a palindrome (54345).

The spelling of 1400240343 in words is "one billion, four hundred million, two hundred forty thousand, three hundred forty-three".