471344640 has 160 divisors (see below), whose sum is σ = 1623083616. Its totient is φ = 115998720.

The previous prime is 471344639. The next prime is 471344683. The reversal of 471344640 is 46443174.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97480 + ... + 102200.

Almost surely, 2^471344640 is an apocalyptic number.

471344640 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 471344640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811541808).

471344640 is an abundant number, since it is smaller than the sum of its proper divisors (1151738976).

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

471344640 is a wasteful number, since it uses less digits than its factorization.

471344640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760 (or 4744 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 471344640 is about 21710.4730487385. The cubic root of 471344640 is about 778.2387611613.

The spelling of 471344640 in words is "four hundred seventy-one million, three hundred forty-four thousand, six hundred forty".