969803640 has 192 divisors, whose sum is σ = 3467318400. Its totient is φ = 233588736.

The previous prime is 969803621. The next prime is 969803651. The reversal of 969803640 is 46308969.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217756 + ... + 222164.

It is an arithmetic number, because the mean of its divisors is an integer number (18058950).

Almost surely, 2^969803640 is an apocalyptic number.

969803640 is a gapful number since it is divisible by the number (90) 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 969803640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733659200).

969803640 is an abundant number, since it is smaller than the sum of its proper divisors (2497514760).

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

969803640 is a wasteful number, since it uses less digits than its factorization.

969803640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486 (or 4479 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 969803640 is about 31141.6704754257. The cubic root of 969803640 is about 989.8314987173.

It can be divided in two parts, 969 and 803640, that added together give a square (804609 = 897²).

The spelling of 969803640 in words is "nine hundred sixty-nine million, eight hundred three thousand, six hundred forty".