1400540366 has 4 divisors (see below), whose sum is σ = 2100810552. Its totient is φ = 700270182.

The previous prime is 1400540363. The next prime is 1400540381. The reversal of 1400540366 is 6630450041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6630450041 = 17 ⋅390026473.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400540363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350135090 + ... + 350135093.

It is an arithmetic number, because the mean of its divisors is an integer number (525202638).

Almost surely, 2^1400540366 is an apocalyptic number.

1400540366 is a deficient number, since it is larger than the sum of its proper divisors (700270186).

1400540366 is an equidigital number, since it uses as much as digits as its factorization.

1400540366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700270185.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1400540366 is about 37423.7941155089. The cubic root of 1400540366 is about 1118.8328524888.

The spelling of 1400540366 in words is "one billion, four hundred million, five hundred forty thousand, three hundred sixty-six".