47257456 has 40 divisors (see below), whose sum is σ = 96092064. Its totient is φ = 22471680.

The previous prime is 47257393. The next prime is 47257481. The reversal of 47257456 is 65475274.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103180 + ... + 103636.

Almost surely, 2^47257456 is an apocalyptic number.

47257456 is a gapful number since it is divisible by the number (46) 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 47257456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48046032).

47257456 is an abundant number, since it is smaller than the sum of its proper divisors (48834608).

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

47257456 is a wasteful number, since it uses less digits than its factorization.

47257456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 763 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

The square root of 47257456 is about 6874.4058652366. The cubic root of 47257456 is about 361.5403545211.

The spelling of 47257456 in words is "forty-seven million, two hundred fifty-seven thousand, four hundred fifty-six".