1021554432 has 108 divisors (see below), whose sum is σ = 2963043720. Its totient is φ = 338479104.

The previous prime is 1021554419. The next prime is 1021554449. The reversal of 1021554432 is 2344551201.

1021554432 is a `hidden beast` number, since 1 + 0 + 215 + 5 + 443 + 2 = 666.

1021554432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021554396 and 1021554405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411178 + ... + 413654.

It is an arithmetic number, because the mean of its divisors is an integer number (27435590).

Almost surely, 2^1021554432 is an apocalyptic number.

1021554432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021554432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481521860).

1021554432 is an abundant number, since it is smaller than the sum of its proper divisors (1941489288).

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

1021554432 is a wasteful number, since it uses less digits than its factorization.

1021554432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2661 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1021554432 is about 31961.7651577631. The cubic root of 1021554432 is about 1007.1337985691.

The spelling of 1021554432 in words is "one billion, twenty-one million, five hundred fifty-four thousand, four hundred thirty-two".