478949874 has 48 divisors (see below), whose sum is σ = 1095886848. Its totient is φ = 138693888.

The previous prime is 478949839. The next prime is 478949879.

478949874 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478949879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11919 + ... + 33165.

It is an arithmetic number, because the mean of its divisors is an integer number (22830976).

Almost surely, 2^478949874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478949874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547943424).

478949874 is an abundant number, since it is smaller than the sum of its proper divisors (616936974).

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

478949874 is a wasteful number, since it uses less digits than its factorization.

478949874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21299 (or 21282 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The square root of 478949874 is about 21884.9234405789. The cubic root of 478949874 is about 782.4021246246.

The spelling of 478949874 in words is "four hundred seventy-eight million, nine hundred forty-nine thousand, eight hundred seventy-four".