947570440 has 16 divisors (see below), whose sum is σ = 2132033580. Its totient is φ = 379028160.

The previous prime is 947570419. The next prime is 947570443. The reversal of 947570440 is 44075749.

It can be written as a sum of positive squares in 2 ways, for example, as 947285284 + 285156 = 30778^2 + 534^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 23689261 = 947570440 / (9 + 4 + 7 + 5 + 7 + 0 + 4 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 947570393 and 947570402.

It is not an unprimeable number, because it can be changed into a prime (947570443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11844591 + ... + 11844670.

Almost surely, 2^947570440 is an apocalyptic number.

It is an amenable number.

947570440 is an abundant number, since it is smaller than the sum of its proper divisors (1184463140).

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

947570440 is a wasteful number, since it uses less digits than its factorization.

947570440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23689272 (or 23689268 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 947570440 is about 30782.6321161788. The cubic root of 947570440 is about 982.2088314419.

The spelling of 947570440 in words is "nine hundred forty-seven million, five hundred seventy thousand, four hundred forty".