470247778 has 128 divisors (see below), whose sum is σ = 1030288896. Its totient is φ = 154828800.

The previous prime is 470247749. The next prime is 470247779. The reversal of 470247778 is 877742074.

470247778 is a nontrivial binomial coefficient, being equal to C(30668, 2).

It is a super-2 number, since 2×470247778² = 442265945427874568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (470247779) 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 63 ways as a sum of consecutive naturals, for example, 1395226 + ... + 1395562.

It is an arithmetic number, because the mean of its divisors is an integer number (8049132).

Almost surely, 2^470247778 is an apocalyptic number.

470247778 is the 30667-th triangular number and also the 15334-th hexagonal number.

470247778 is the 10223-rd centered nonagonal number.

470247778 is an abundant number, since it is smaller than the sum of its proper divisors (560041118).

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

470247778 is a wasteful number, since it uses less digits than its factorization.

470247778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 614656, while the sum is 46.

The square root of 470247778 is about 21685.1972091563. The cubic root of 470247778 is about 777.6346147400.

The spelling of 470247778 in words is "four hundred seventy million, two hundred forty-seven thousand, seven hundred seventy-eight".