2947557492 has 96 divisors (see below), whose sum is σ = 8561965440. Its totient is φ = 869045760.

The previous prime is 2947557467. The next prime is 2947557493.

2947557492 is a `hidden beast` number, since 2 + 9 + 47 + 557 + 49 + 2 = 666.

2947557492 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947557493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10428 + ... + 77484.

It is an arithmetic number, because the mean of its divisors is an integer number (89187140).

Almost surely, 2^2947557492 is an apocalyptic number.

2947557492 is a gapful number since it is divisible by the number (22) 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 2947557492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4280982720).

2947557492 is an abundant number, since it is smaller than the sum of its proper divisors (5614407948).

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

2947557492 is a wasteful number, since it uses less digits than its factorization.

2947557492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67118 (or 67110 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 2947557492 is about 54291.4126911430. The cubic root of 2947557492 is about 1433.7962106020.

The spelling of 2947557492 in words is "two billion, nine hundred forty-seven million, five hundred fifty-seven thousand, four hundred ninety-two".