947838240 has 96 divisors (see below), whose sum is σ = 3317448960. Its totient is φ = 252755712.

The previous prime is 947838197. The next prime is 947838253. The reversal of 947838240 is 42838749.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 105384 + ... + 114023.

It is an arithmetic number, because the mean of its divisors is an integer number (34556760).

Almost surely, 2^947838240 is an apocalyptic number.

947838240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

947838240 is an abundant number, since it is smaller than the sum of its proper divisors (2369610720).

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

947838240 is a wasteful number, since it uses less digits than its factorization.

947838240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219431 (or 219417 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 947838240 is about 30786.9816643334. The cubic root of 947838240 is about 982.3013525318.

The spelling of 947838240 in words is "nine hundred forty-seven million, eight hundred thirty-eight thousand, two hundred forty".