1400627253 has 4 divisors (see below), whose sum is σ = 1867503008. Its totient is φ = 933751500.

The previous prime is 1400627243. The next prime is 1400627299. The reversal of 1400627253 is 3527260041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1400627253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400627253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400627233) 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 in 3 ways as a sum of consecutive naturals, for example, 233437873 + ... + 233437878.

It is an arithmetic number, because the mean of its divisors is an integer number (466875752).

Almost surely, 2^1400627253 is an apocalyptic number.

It is an amenable number.

1400627253 is a deficient number, since it is larger than the sum of its proper divisors (466875755).

1400627253 is an equidigital number, since it uses as much as digits as its factorization.

1400627253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466875754.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1400627253 is about 37424.9549498727. The cubic root of 1400627253 is about 1118.8559888016.

Adding to 1400627253 its reverse (3527260041), we get a palindrome (4927887294).

The spelling of 1400627253 in words is "one billion, four hundred million, six hundred twenty-seven thousand, two hundred fifty-three".