9461394540 has 576 divisors, whose sum is σ = 35505340416. Its totient is φ = 2091184128.

The previous prime is 9461394491. The next prime is 9461394541. The reversal of 9461394540 is 454931649.

9461394540 is a `hidden beast` number, since 9 + 4 + 6 + 13 + 94 + 540 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (9461394541) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 24703189 + ... + 24703571.

It is an arithmetic number, because the mean of its divisors is an integer number (61641216).

Almost surely, 2^9461394540 is an apocalyptic number.

9461394540 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 9461394540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17752670208).

9461394540 is an abundant number, since it is smaller than the sum of its proper divisors (26043945876).

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

9461394540 is a wasteful number, since it uses less digits than its factorization.

9461394540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 9461394540 is about 97269.7000098181. The cubic root of 9461394540 is about 2115.0390214620.

The spelling of 9461394540 in words is "nine billion, four hundred sixty-one million, three hundred ninety-four thousand, five hundred forty".