1040634620 has 96 divisors (see below), whose sum is σ = 2309475840. Its totient is φ = 393465600.

The previous prime is 1040634593. The next prime is 1040634641. The reversal of 1040634620 is 264360401.

It is a self number, because there is not a number n which added to its sum of digits gives 1040634620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6891545 + ... + 6891695.

It is an arithmetic number, because the mean of its divisors is an integer number (24057040).

Almost surely, 2^1040634620 is an apocalyptic number.

1040634620 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 1040634620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154737920).

1040634620 is an abundant number, since it is smaller than the sum of its proper divisors (1268841220).

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

1040634620 is a wasteful number, since it uses less digits than its factorization.

1040634620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1040634620 is about 32258.8688580365. The cubic root of 1040634620 is about 1013.3654424363.

The spelling of 1040634620 in words is "one billion, forty million, six hundred thirty-four thousand, six hundred twenty".