947542540 has 48 divisors (see below), whose sum is σ = 2393798400. Its totient is φ = 307772352.

The previous prime is 947542501. The next prime is 947542543. The reversal of 947542540 is 45245749.

It is a super-4 number, since 4×947542540⁴ (a number of 37 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 947542493 and 947542502.

It is not an unprimeable number, because it can be changed into a prime (947542543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175450 + ... + 180769.

It is an arithmetic number, because the mean of its divisors is an integer number (49870800).

Almost surely, 2^947542540 is an apocalyptic number.

It is an amenable number.

947542540 is an abundant number, since it is smaller than the sum of its proper divisors (1446255860).

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

947542540 is a wasteful number, since it uses less digits than its factorization.

947542540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356254 (or 356252 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 947542540 is about 30782.1789352216. The cubic root of 947542540 is about 982.1991913862.

The spelling of 947542540 in words is "nine hundred forty-seven million, five hundred forty-two thousand, five hundred forty".