1421213432 has 16 divisors (see below), whose sum is σ = 2665278000. Its totient is φ = 710472640.

The previous prime is 1421213429. The next prime is 1421213459. The reversal of 1421213432 is 2343121241.

It is a junction number, because it is equal to n+sod(n) for n = 1421213398 and 1421213407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39332 + ... + 66252.

It is an arithmetic number, because the mean of its divisors is an integer number (166579875).

Almost surely, 2^1421213432 is an apocalyptic number.

It is an amenable number.

1421213432 is a deficient number, since it is larger than the sum of its proper divisors (1244064568).

1421213432 is a wasteful number, since it uses less digits than its factorization.

1421213432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33526 (or 33522 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1421213432 is about 37698.9844956068. The cubic root of 1421213432 is about 1124.3109346080.

Adding to 1421213432 its reverse (2343121241), we get a palindrome (3764334673).

The spelling of 1421213432 in words is "one billion, four hundred twenty-one million, two hundred thirteen thousand, four hundred thirty-two".