9542791440 has 400 divisors, whose sum is σ = 40794555648. Its totient is φ = 2013299712.

The previous prime is 9542791403. The next prime is 9542791459. The reversal of 9542791440 is 441972459.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 581589 + ... + 597771.

Almost surely, 2^9542791440 is an apocalyptic number.

9542791440 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 9542791440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20397277824).

9542791440 is an abundant number, since it is smaller than the sum of its proper divisors (31251764208).

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

9542791440 is a wasteful number, since it uses less digits than its factorization.

9542791440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16228 (or 16213 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 9542791440 is about 97687.2122644515. The cubic root of 9542791440 is about 2121.0869767013.

The spelling of 9542791440 in words is "nine billion, five hundred forty-two million, seven hundred ninety-one thousand, four hundred forty".