1047218652 has 96 divisors (see below), whose sum is σ = 2822400000. Its totient is φ = 335385792.

The previous prime is 1047218647. The next prime is 1047218701. The reversal of 1047218652 is 2568127401.

1047218652 is a `hidden beast` number, since 1 + 0 + 472 + 186 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747849 + ... + 749247.

It is an arithmetic number, because the mean of its divisors is an integer number (29400000).

Almost surely, 2^1047218652 is an apocalyptic number.

1047218652 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 1047218652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411200000).

1047218652 is an abundant number, since it is smaller than the sum of its proper divisors (1775181348).

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

1047218652 is a wasteful number, since it uses less digits than its factorization.

1047218652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1047218652 is about 32360.7579021258. The cubic root of 1047218652 is about 1015.4981181605.

The spelling of 1047218652 in words is "one billion, forty-seven million, two hundred eighteen thousand, six hundred fifty-two".