1440000342 has 40 divisors (see below), whose sum is σ = 3520005192. Its totient is φ = 436363200.

The previous prime is 1440000323. The next prime is 1440000371. The reversal of 1440000342 is 2430000441.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 402259 + ... + 405822.

Almost surely, 2^1440000342 is an apocalyptic number.

1440000342 is an abundant number, since it is smaller than the sum of its proper divisors (2080004850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440000342 is a wasteful number, since it uses less digits than its factorization.

1440000342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808106 (or 808097 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1440000342 is about 37947.3364282660. The cubic root of 1440000342 is about 1129.2433240556.

Adding to 1440000342 its reverse (2430000441), we get a palindrome (3870000783).

Subtracting 1440000342 from its reverse (2430000441), we obtain a palindrome (990000099).

The spelling of 1440000342 in words is "one billion, four hundred forty million, three hundred forty-two", and thus it is an aban number.