478025142 has 128 divisors (see below), whose sum is σ = 1230888960. Its totient is φ = 120476160.

The previous prime is 478025131. The next prime is 478025153. The reversal of 478025142 is 241520874.

It is an interprime number because it is at equal distance from previous prime (478025131) and next prime (478025153).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2265417 + ... + 2265627.

It is an arithmetic number, because the mean of its divisors is an integer number (9616320).

Almost surely, 2^478025142 is an apocalyptic number.

478025142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 478025142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615444480).

478025142 is an abundant number, since it is smaller than the sum of its proper divisors (752863818).

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

478025142 is a wasteful number, since it uses less digits than its factorization.

478025142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 478025142 is about 21863.7860856714. The cubic root of 478025142 is about 781.8982594945.

The spelling of 478025142 in words is "four hundred seventy-eight million, twenty-five thousand, one hundred forty-two".