1400240623 has 2 divisors, whose sum is σ = 1400240624. Its totient is φ = 1400240622.

The previous prime is 1400240609. The next prime is 1400240641. The reversal of 1400240623 is 3260420041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1400240623 - 2²⁹ = 863369711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1400240594 and 1400240603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400240603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700120311 + 700120312.

It is an arithmetic number, because the mean of its divisors is an integer number (700120312).

Almost surely, 2^1400240623 is an apocalyptic number.

1400240623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400240623 is an equidigital number, since it uses as much as digits as its factorization.

1400240623 is an evil number, because the sum of its binary digits is even.

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

The square root of 1400240623 is about 37419.7891896788. The cubic root of 1400240623 is about 1118.7530294312.

Adding to 1400240623 its reverse (3260420041), we get a palindrome (4660660664).

The spelling of 1400240623 in words is "one billion, four hundred million, two hundred forty thousand, six hundred twenty-three".