1034636640 has 192 divisors, whose sum is σ = 3515581440. Its totient is φ = 254914560.

The previous prime is 1034636597. The next prime is 1034636641. The reversal of 1034636640 is 466364301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034636641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372537 + ... + 375303.

It is an arithmetic number, because the mean of its divisors is an integer number (18310320).

Almost surely, 2^1034636640 is an apocalyptic number.

1034636640 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 1034636640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757790720).

1034636640 is an abundant number, since it is smaller than the sum of its proper divisors (2480944800).

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

1034636640 is a wasteful number, since it uses less digits than its factorization.

1034636640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 1034636640 is about 32165.7681394367. The cubic root of 1034636640 is about 1011.4147542834.

The spelling of 1034636640 in words is "one billion, thirty-four million, six hundred thirty-six thousand, six hundred forty".