1400423002645 has 8 divisors (see below), whose sum is σ = 1779360991704. Its totient is φ = 1054436143104.

The previous prime is 1400423002579. The next prime is 1400423002669. The reversal of 1400423002645 is 5462003240041.

It can be written as a sum of positive squares in 4 ways, for example, as 159406950564 + 1241016052081 = 399258^2 + 1114009^2 .

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 1400423002645 - 2¹¹ = 1400423000597 is a prime.

It is a super-2 number, since 2×1400423002645² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8237782284 + ... + 8237782453.

It is an arithmetic number, because the mean of its divisors is an integer number (222420123963).

Almost surely, 2^{1400423002645} is an apocalyptic number.

It is an amenable number.

1400423002645 is a deficient number, since it is larger than the sum of its proper divisors (378937989059).

1400423002645 is a wasteful number, since it uses less digits than its factorization.

1400423002645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16475564759.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1400423002645 its reverse (5462003240041), we get a palindrome (6862426242686).

The spelling of 1400423002645 in words is "one trillion, four hundred billion, four hundred twenty-three million, two thousand, six hundred forty-five".