1046666020 has 48 divisors (see below), whose sum is σ = 2280918528. Its totient is φ = 403015680.

The previous prime is 1046666011. The next prime is 1046666021. The reversal of 1046666020 is 206666401.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1046666021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115287 + ... + 124033.

It is an arithmetic number, because the mean of its divisors is an integer number (47519136).

Almost surely, 2^1046666020 is an apocalyptic number.

1046666020 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 1046666020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140459264).

1046666020 is an abundant number, since it is smaller than the sum of its proper divisors (1234252508).

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

1046666020 is a wasteful number, since it uses less digits than its factorization.

1046666020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8980 (or 8978 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1046666020 is about 32352.2181619746. The cubic root of 1046666020 is about 1015.3194558531.

The spelling of 1046666020 in words is "one billion, forty-six million, six hundred sixty-six thousand, twenty".