1440234215 has 12 divisors (see below), whose sum is σ = 2010449736. Its totient is φ = 987589008.

The previous prime is 1440234209. The next prime is 1440234241. The reversal of 1440234215 is 5124320441.

It is not a de Polignac number, because 1440234215 - 2⁶ = 1440234151 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 2939009 + ... + 2939498.

It is an arithmetic number, because the mean of its divisors is an integer number (167537478).

Almost surely, 2^1440234215 is an apocalyptic number.

1440234215 is a deficient number, since it is larger than the sum of its proper divisors (570215521).

1440234215 is an equidigital number, since it uses as much as digits as its factorization.

1440234215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878526 (or 5878519 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1440234215 is about 37950.4178501370. The cubic root of 1440234215 is about 1129.3044548809.

Adding to 1440234215 its reverse (5124320441), we get a palindrome (6564554656).

The spelling of 1440234215 in words is "one billion, four hundred forty million, two hundred thirty-four thousand, two hundred fifteen".