961822740 has 96 divisors (see below), whose sum is σ = 2900975616. Its totient is φ = 237409920.

The previous prime is 961822727. The next prime is 961822751. The reversal of 961822740 is 47228169.

It is a super-2 number, since 2×961822740² = 1850205966362215200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31539 + ... + 54021.

It is an arithmetic number, because the mean of its divisors is an integer number (30218496).

Almost surely, 2^961822740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961822740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450487808).

961822740 is an abundant number, since it is smaller than the sum of its proper divisors (1939152876).

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

961822740 is a wasteful number, since it uses less digits than its factorization.

961822740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22549 (or 22547 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 961822740 is about 31013.2671610071. The cubic root of 961822740 is about 987.1087771433.

The spelling of 961822740 in words is "nine hundred sixty-one million, eight hundred twenty-two thousand, seven hundred forty".