1440204412 has 12 divisors (see below), whose sum is σ = 2520932400. Its totient is φ = 719938016.

The previous prime is 1440204379. The next prime is 1440204421. The reversal of 1440204412 is 2144020441.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20128 + ... + 57319.

It is an arithmetic number, because the mean of its divisors is an integer number (210077700).

Almost surely, 2^1440204412 is an apocalyptic number.

It is an amenable number.

1440204412 is a deficient number, since it is larger than the sum of its proper divisors (1080727988).

1440204412 is a wasteful number, since it uses less digits than its factorization.

1440204412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82100 (or 82098 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1440204412 is about 37950.0251910325. The cubic root of 1440204412 is about 1129.2966652004.

Adding to 1440204412 its reverse (2144020441), we get a palindrome (3584224853).

It can be divided in two parts, 144020441 and 2, that multiplied together give a palindrome (288040882).

The spelling of 1440204412 in words is "one billion, four hundred forty million, two hundred four thousand, four hundred twelve".