1400342045 has 4 divisors (see below), whose sum is σ = 1680410460. Its totient is φ = 1120273632.

The previous prime is 1400342033. The next prime is 1400342057. The reversal of 1400342045 is 5402430041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1400342033) and next prime (1400342057).

It can be written as a sum of positive squares in 2 ways, for example, as 277488964 + 1122853081 = 16658^2 + 33509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400342045 - 2⁶ = 1400341981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400342045.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 140034200 + ... + 140034209.

It is an arithmetic number, because the mean of its divisors is an integer number (420102615).

Almost surely, 2^1400342045 is an apocalyptic number.

It is an amenable number.

1400342045 is a deficient number, since it is larger than the sum of its proper divisors (280068415).

1400342045 is an equidigital number, since it uses as much as digits as its factorization.

1400342045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280068414.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1400342045 is about 37421.1443571679. The cubic root of 1400342045 is about 1118.7800398912.

Adding to 1400342045 its reverse (5402430041), we get a palindrome (6802772086).

The spelling of 1400342045 in words is "one billion, four hundred million, three hundred forty-two thousand, forty-five".