1421354432 has 28 divisors (see below), whose sum is σ = 2968950120. Its totient is φ = 673272576.

The previous prime is 1421354399. The next prime is 1421354443. The reversal of 1421354432 is 2344531241.

It is a junction number, because it is equal to n+sod(n) for n = 1421354395 and 1421354404.

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, 583223 + ... + 585654.

Almost surely, 2^1421354432 is an apocalyptic number.

It is an amenable number.

1421354432 is an abundant number, since it is smaller than the sum of its proper divisors (1547595688).

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

1421354432 is a wasteful number, since it uses less digits than its factorization.

1421354432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168908 (or 1168898 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 1421354432 is about 37700.8545261245. The cubic root of 1421354432 is about 1124.3481147143.

Adding to 1421354432 its reverse (2344531241), we get a palindrome (3765885673).

The spelling of 1421354432 in words is "one billion, four hundred twenty-one million, three hundred fifty-four thousand, four hundred thirty-two".