396142428 has 96 divisors (see below), whose sum is σ = 1050255360. Its totient is φ = 115128000.

The previous prime is 396142427. The next prime is 396142433. The reversal of 396142428 is 824241693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396142421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 535683 + ... + 536421.

It is an arithmetic number, because the mean of its divisors is an integer number (10940160).

Almost surely, 2^396142428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396142428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525127680).

396142428 is an abundant number, since it is smaller than the sum of its proper divisors (654112932).

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

396142428 is a wasteful number, since it uses less digits than its factorization.

396142428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 917 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 396142428 is about 19903.3270585598. The cubic root of 396142428 is about 734.4300751041.

The spelling of 396142428 in words is "three hundred ninety-six million, one hundred forty-two thousand, four hundred twenty-eight".