470246640 has 40 divisors (see below), whose sum is σ = 1457765328. Its totient is φ = 125399040.

The previous prime is 470246611. The next prime is 470246641. The reversal of 470246640 is 46642074.

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

It is a super-2 number, since 2×470246640² = 442263804862579200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470246641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979441 + ... + 979920.

Almost surely, 2^470246640 is an apocalyptic number.

470246640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

470246640 is an abundant number, since it is smaller than the sum of its proper divisors (987518688).

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

470246640 is a wasteful number, since it uses less digits than its factorization.

470246640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959377 (or 1959371 counting only the distinct ones).

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

The square root of 470246640 is about 21685.1709700431. The cubic root of 470246640 is about 777.6339874474.

The spelling of 470246640 in words is "four hundred seventy million, two hundred forty-six thousand, six hundred forty".