959999040 has 1120 divisors, whose sum is σ = 4708940544. Its totient is φ = 179159040.

The previous prime is 959999021. The next prime is 959999063. The reversal of 959999040 is 40999959.

It is a happy number.

959999040 is a `hidden beast` number, since 9 + 599 + 9 + 9 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 25945902 + ... + 25945938.

Almost surely, 2^959999040 is an apocalyptic number.

959999040 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 959999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354470272).

959999040 is an abundant number, since it is smaller than the sum of its proper divisors (3748941504).

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

959999040 is a wasteful number, since it uses less digits than its factorization.

959999040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 54.

The square root of 959999040 is about 30983.8512777221. The cubic root of 959999040 is about 986.4845009038.

It can be divided in two parts, 959 and 999040, that added together give a palindrome (999999).

The spelling of 959999040 in words is "nine hundred fifty-nine million, nine hundred ninety-nine thousand, forty".