478242402 has 48 divisors (see below), whose sum is σ = 1108471392. Its totient is φ = 136391680.

The previous prime is 478242397. The next prime is 478242461. The reversal of 478242402 is 204242874.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6538 + ... + 31610.

It is an arithmetic number, because the mean of its divisors is an integer number (23093154).

Almost surely, 2^478242402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478242402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554235696).

478242402 is an abundant number, since it is smaller than the sum of its proper divisors (630228990).

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

478242402 is a wasteful number, since it uses less digits than its factorization.

478242402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25123 (or 25106 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 478242402 is about 21868.7540111457. The cubic root of 478242402 is about 782.0166978161.

The spelling of 478242402 in words is "four hundred seventy-eight million, two hundred forty-two thousand, four hundred two".