1046411820 has 144 divisors (see below), whose sum is σ = 3293192448. Its totient is φ = 268669440.

The previous prime is 1046411819. The next prime is 1046411831. The reversal of 1046411820 is 281146401.

It is a happy number.

1046411820 is a `hidden beast` number, since 1 + 0 + 4 + 641 + 18 + 2 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 1545322 + ... + 1545998.

It is an arithmetic number, because the mean of its divisors is an integer number (22869392).

Almost surely, 2^1046411820 is an apocalyptic number.

1046411820 is a gapful number since it is divisible by the number (10) 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 1046411820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646596224).

1046411820 is an abundant number, since it is smaller than the sum of its proper divisors (2246780628).

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

1046411820 is a wasteful number, since it uses less digits than its factorization.

1046411820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1046411820 is about 32348.2892901619. The cubic root of 1046411820 is about 1015.2372535404.

The spelling of 1046411820 in words is "one billion, forty-six million, four hundred eleven thousand, eight hundred twenty".