1040505646 has 32 divisors (see below), whose sum is σ = 1646863488. Its totient is φ = 492560640.

The previous prime is 1040505643. The next prime is 1040505649. The reversal of 1040505646 is 6465050401.

It is an interprime number because it is at equal distance from previous prime (1040505643) and next prime (1040505649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040505643) 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, 362256 + ... + 365116.

It is an arithmetic number, because the mean of its divisors is an integer number (51464484).

Almost surely, 2^1040505646 is an apocalyptic number.

1040505646 is a deficient number, since it is larger than the sum of its proper divisors (606357842).

1040505646 is a wasteful number, since it uses less digits than its factorization.

1040505646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1040505646 is about 32256.8697489388. The cubic root of 1040505646 is about 1013.3235759342.

The spelling of 1040505646 in words is "one billion, forty million, five hundred five thousand, six hundred forty-six".