4457847492 has 144 divisors (see below), whose sum is σ = 13477481472. Its totient is φ = 1215544320.

The previous prime is 4457847451. The next prime is 4457847497. The reversal of 4457847492 is 2947487544.

4457847492 is a `hidden beast` number, since 4 + 45 + 78 + 47 + 492 = 666.

It is a super-3 number, since 3×4457847492³ (a number of 30 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4457847497) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 566368 + ... + 574184.

Almost surely, 2^4457847492 is an apocalyptic number.

4457847492 is a gapful number since it is divisible by the number (42) 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 4457847492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6738740736).

4457847492 is an abundant number, since it is smaller than the sum of its proper divisors (9019633980).

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

4457847492 is a wasteful number, since it uses less digits than its factorization.

4457847492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938 (or 7933 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The square root of 4457847492 is about 66767.1138510569. The cubic root of 4457847492 is about 1645.7924621712.

The spelling of 4457847492 in words is "four billion, four hundred fifty-seven million, eight hundred forty-seven thousand, four hundred ninety-two".