947204280 has 224 divisors, whose sum is σ = 3487019760. Its totient is φ = 229547520.

The previous prime is 947204267. The next prime is 947204281. The reversal of 947204280 is 82402749.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947204281) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 319284 + ... + 322236.

Almost surely, 2^947204280 is an apocalyptic number.

947204280 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 947204280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743509880).

947204280 is an abundant number, since it is smaller than the sum of its proper divisors (2539815480).

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

947204280 is a wasteful number, since it uses less digits than its factorization.

947204280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993 (or 2974 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 947204280 is about 30776.6840319096. The cubic root of 947204280 is about 982.0823001554.

The spelling of 947204280 in words is "nine hundred forty-seven million, two hundred four thousand, two hundred eighty".