1342400663 has 4 divisors (see below), whose sum is σ = 1378681800. Its totient is φ = 1306119528.

The previous prime is 1342400659. The next prime is 1342400671. The reversal of 1342400663 is 3660042431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3660042431 = 409 ⋅8948759.

It is a cyclic number.

It is not a de Polignac number, because 1342400663 - 2² = 1342400659 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 (1342400963) 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, 18140513 + ... + 18140586.

It is an arithmetic number, because the mean of its divisors is an integer number (344670450).

Almost surely, 2^1342400663 is an apocalyptic number.

1342400663 is a deficient number, since it is larger than the sum of its proper divisors (36281137).

1342400663 is an equidigital number, since it uses as much as digits as its factorization.

1342400663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36281136.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 1342400663 is about 36638.7863199643. The cubic root of 1342400663 is about 1103.1317537945.

The spelling of 1342400663 in words is "one billion, three hundred forty-two million, four hundred thousand, six hundred sixty-three".