1021426432 has 36 divisors (see below), whose sum is σ = 2195705680. Its totient is φ = 471426048.

The previous prime is 1021426423. The next prime is 1021426459. The reversal of 1021426432 is 2346241201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021426397 and 1021426406.

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, 150132 + ... + 156787.

Almost surely, 2^1021426432 is an apocalyptic number.

It is an amenable number.

1021426432 is an abundant number, since it is smaller than the sum of its proper divisors (1174279248).

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

1021426432 is an equidigital number, since it uses as much as digits as its factorization.

1021426432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306948 (or 306934 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1021426432 is about 31959.7627024983. The cubic root of 1021426432 is about 1007.0917324436.

Adding to 1021426432 its reverse (2346241201), we get a palindrome (3367667633).

The spelling of 1021426432 in words is "one billion, twenty-one million, four hundred twenty-six thousand, four hundred thirty-two".