471440 has 40 divisors (see below), whose sum is σ = 1124928. Its totient is φ = 183680.

The previous prime is 471439. The next prime is 471451. The reversal of 471440 is 44174.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a plaindrome in base 13.

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, 5639 + ... + 5721.

2⁴⁷¹⁴⁴⁰ is an apocalyptic number.

471440 is a gapful number since it is divisible by the number (40) 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 471440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562464).

471440 is an abundant number, since it is smaller than the sum of its proper divisors (653488).

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

471440 is a wasteful number, since it uses less digits than its factorization.

471440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 471440 is about 686.6148847789. The cubic root of 471440 is about 77.8291240697.

The spelling of 471440 in words is "four hundred seventy-one thousand, four hundred forty", and thus it is an iban number.