28629342 has 128 divisors (see below), whose sum is σ = 78796800. Its totient is φ = 7527168.

The previous prime is 28629331. The next prime is 28629347. The reversal of 28629342 is 24392682.

28629342 is a `hidden beast` number, since 28 + 629 + 3 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28629297 and 28629306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28629347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321634 + ... + 321722.

It is an arithmetic number, because the mean of its divisors is an integer number (615600).

Almost surely, 2^28629342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28629342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39398400).

28629342 is an abundant number, since it is smaller than the sum of its proper divisors (50167458).

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

28629342 is a wasteful number, since it uses less digits than its factorization.

28629342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 161 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 28629342 is about 5350.6394010436. The cubic root of 28629342 is about 305.9171248077.

The spelling of 28629342 in words is "twenty-eight million, six hundred twenty-nine thousand, three hundred forty-two".