1040646061 has 12 divisors (see below), whose sum is σ = 1287833952. Its totient is φ = 823367376.

The previous prime is 1040646029. The next prime is 1040646067. The reversal of 1040646061 is 1606460401.

It is not a de Polignac number, because 1040646061 - 2⁵ = 1040646029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040646067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438651 + ... + 441016.

It is an arithmetic number, because the mean of its divisors is an integer number (107319496).

Almost surely, 2^1040646061 is an apocalyptic number.

It is an amenable number.

1040646061 is a deficient number, since it is larger than the sum of its proper divisors (247187891).

1040646061 is an equidigital number, since it uses as much as digits as its factorization.

1040646061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879700 (or 879687 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1040646061 is about 32259.0461886275. The cubic root of 1040646061 is about 1013.3691561546.

The spelling of 1040646061 in words is "one billion, forty million, six hundred forty-six thousand, sixty-one".