1010646 has 48 divisors (see below), whose sum is σ = 2699424. Its totient is φ = 266112.

The previous prime is 1010627. The next prime is 1010671. The reversal of 1010646 is 6460101.

1010646 = T₂₆₀ + T₂₆₁ + ... + T₂₈₆.

1010646 is a `hidden beast` number, since 10 + 10 + 646 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1330 + ... + 1946.

It is an arithmetic number, because the mean of its divisors is an integer number (56238).

2^1010646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349712).

1010646 is an abundant number, since it is smaller than the sum of its proper divisors (1688778).

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

1010646 is a wasteful number, since it uses less digits than its factorization.

1010646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1010646 is about 1005.3089077493. The cubic root of 1010646 is about 100.3536147588.

Adding to 1010646 its reverse (6460101), we get a palindrome (7470747).

The spelling of 1010646 in words is "one million, ten thousand, six hundred forty-six".