1400442023 has 8 divisors (see below), whose sum is σ = 1405534416. Its totient is φ = 1395360000.

The previous prime is 1400442013. The next prime is 1400442067. The reversal of 1400442023 is 3202440041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400442023 is a prime.

It is a super-2 number, since 2×1400442023² = 3922475719568665058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400441986 and 1400442004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400442013) 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, 348023 + ... + 352023.

It is an arithmetic number, because the mean of its divisors is an integer number (175691802).

Almost surely, 2^1400442023 is an apocalyptic number.

1400442023 is a deficient number, since it is larger than the sum of its proper divisors (5092393).

1400442023 is an equidigital number, since it uses as much as digits as its factorization.

1400442023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1400442023 is about 37422.4801823717. The cubic root of 1400442023 is about 1118.8066645123.

Adding to 1400442023 its reverse (3202440041), we get a palindrome (4602882064).

The spelling of 1400442023 in words is "one billion, four hundred million, four hundred forty-two thousand, twenty-three".