1400441023 has 4 divisors (see below), whose sum is σ = 1400629320. Its totient is φ = 1400252728.

The previous prime is 1400440981. The next prime is 1400441033. The reversal of 1400441023 is 3201440041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400441023 - 2¹⁷ = 1400309951 is a prime.

It is a super-2 number, since 2×1400441023² = 3922470117802573058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400441033) 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, 82513 + ... + 98026.

It is an arithmetic number, because the mean of its divisors is an integer number (350157330).

Almost surely, 2^1400441023 is an apocalyptic number.

1400441023 is a deficient number, since it is larger than the sum of its proper divisors (188297).

1400441023 is an equidigital number, since it uses as much as digits as its factorization.

1400441023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188296.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1400441023 is about 37422.4668214162. The cubic root of 1400441023 is about 1118.8063982138.

Adding to 1400441023 its reverse (3201440041), we get a palindrome (4601881064).

The spelling of 1400441023 in words is "one billion, four hundred million, four hundred forty-one thousand, twenty-three".