1214400423 has 16 divisors (see below), whose sum is σ = 1715800320. Its totient is φ = 761375616.

The previous prime is 1214400419. The next prime is 1214400487. The reversal of 1214400423 is 3240044121.

It is not a de Polignac number, because 1214400423 - 2² = 1214400419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1214400423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214400413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61008 + ... + 78426.

It is an arithmetic number, because the mean of its divisors is an integer number (107237520).

Almost surely, 2^1214400423 is an apocalyptic number.

1214400423 is a deficient number, since it is larger than the sum of its proper divisors (501399897).

1214400423 is a wasteful number, since it uses less digits than its factorization.

1214400423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18806.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1214400423 is about 34848.2484925713. The cubic root of 1214400423 is about 1066.8924372469.

Adding to 1214400423 its reverse (3240044121), we get a palindrome (4454444544).

The spelling of 1214400423 in words is "one billion, two hundred fourteen million, four hundred thousand, four hundred twenty-three".