1440212432 has 20 divisors (see below), whose sum is σ = 2791505856. Its totient is φ = 719823840.

The previous prime is 1440212381. The next prime is 1440212437. The reversal of 1440212432 is 2342120441.

It is a junction number, because it is equal to n+sod(n) for n = 1440212398 and 1440212407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440212437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28007 + ... + 60537.

Almost surely, 2^1440212432 is an apocalyptic number.

It is an amenable number.

1440212432 is a deficient number, since it is larger than the sum of its proper divisors (1351293424).

1440212432 is a wasteful number, since it uses less digits than its factorization.

1440212432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35306 (or 35300 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1440212432 is about 37950.1308561644. The cubic root of 1440212432 is about 1129.2987614173.

Adding to 1440212432 its reverse (2342120441), we get a palindrome (3782332873).

The spelling of 1440212432 in words is "one billion, four hundred forty million, two hundred twelve thousand, four hundred thirty-two".