1400142623 has 8 divisors (see below), whose sum is σ = 1607819520. Its totient is φ = 1205864280.

The previous prime is 1400142613. The next prime is 1400142637. The reversal of 1400142623 is 3262410041.

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 1400142623 - 2⁴ = 1400142607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400142613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3349415 + ... + 3349832.

It is an arithmetic number, because the mean of its divisors is an integer number (200977440).

Almost surely, 2^1400142623 is an apocalyptic number.

1400142623 is a deficient number, since it is larger than the sum of its proper divisors (207676897).

1400142623 is a wasteful number, since it uses less digits than its factorization.

1400142623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699277.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1400142623 is about 37418.4796992074. The cubic root of 1400142623 is about 1118.7269290708.

Adding to 1400142623 its reverse (3262410041), we get a palindrome (4662552664).

The spelling of 1400142623 in words is "one billion, four hundred million, one hundred forty-two thousand, six hundred twenty-three".