1061421472 has 48 divisors (see below), whose sum is σ = 2235794400. Its totient is φ = 494519040.

The previous prime is 1061421463. The next prime is 1061421497. The reversal of 1061421472 is 2741241601.

It is a super-2 number, since 2×1061421472² = 2253231082445293568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1061421472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22779 + ... + 51397.

It is an arithmetic number, because the mean of its divisors is an integer number (46579050).

Almost surely, 2^1061421472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061421472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1117897200).

1061421472 is an abundant number, since it is smaller than the sum of its proper divisors (1174372928).

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

1061421472 is a wasteful number, since it uses less digits than its factorization.

1061421472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28709 (or 28701 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1061421472 is about 32579.4639612134. The cubic root of 1061421472 is about 1020.0683896218.

The spelling of 1061421472 in words is "one billion, sixty-one million, four hundred twenty-one thousand, four hundred seventy-two".