470819640 has 128 divisors (see below), whose sum is σ = 1470830400. Its totient is φ = 120422400.

The previous prime is 470819621. The next prime is 470819647. The reversal of 470819640 is 46918074.

It is a happy number.

It is a super-2 number, since 2×470819640² = 443342266819459200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470819647) 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, 671290 + ... + 671990.

Almost surely, 2^470819640 is an apocalyptic number.

470819640 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 470819640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735415200).

470819640 is an abundant number, since it is smaller than the sum of its proper divisors (1000010760).

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

470819640 is a wasteful number, since it uses less digits than its factorization.

470819640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 470819640 is about 21698.3787412793. The cubic root of 470819640 is about 777.9497107129.

The spelling of 470819640 in words is "four hundred seventy million, eight hundred nineteen thousand, six hundred forty".