1021046472 has 160 divisors (see below), whose sum is σ = 3038745600. Its totient is φ = 319406976.

The previous prime is 1021046461. The next prime is 1021046557. The reversal of 1021046472 is 2746401201.

1021046472 is a `hidden beast` number, since 1 + 0 + 2 + 10 + 4 + 647 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1563298 + ... + 1563950.

It is an arithmetic number, because the mean of its divisors is an integer number (18992160).

Almost surely, 2^1021046472 is an apocalyptic number.

1021046472 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 1021046472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519372800).

1021046472 is an abundant number, since it is smaller than the sum of its proper divisors (2017699128).

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

1021046472 is a wasteful number, since it uses less digits than its factorization.

1021046472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1021046472 is about 31953.8178000689. The cubic root of 1021046472 is about 1006.9668410759.

Adding to 1021046472 its reverse (2746401201), we get a palindrome (3767447673).

The spelling of 1021046472 in words is "one billion, twenty-one million, forty-six thousand, four hundred seventy-two".