1400625005 has 8 divisors (see below), whose sum is σ = 1810038552. Its totient is φ = 1034307648.

The previous prime is 1400624993. The next prime is 1400625007. The reversal of 1400625005 is 5005260041.

It can be written as a sum of positive squares in 4 ways, for example, as 221801449 + 1178823556 = 14893^2 + 34334^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400625005 - 2⁶ = 1400624941 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 (1400625007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10773974 + ... + 10774103.

It is an arithmetic number, because the mean of its divisors is an integer number (226254819).

Almost surely, 2^1400625005 is an apocalyptic number.

It is an amenable number.

1400625005 is a deficient number, since it is larger than the sum of its proper divisors (409413547).

1400625005 is a wasteful number, since it uses less digits than its factorization.

1400625005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21548095.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1400625005 is about 37424.9249164243. The cubic root of 1400625005 is about 1118.8553902151.

Adding to 1400625005 its reverse (5005260041), we get a palindrome (6405885046).

The spelling of 1400625005 in words is "one billion, four hundred million, six hundred twenty-five thousand, five".