29926428 has 48 divisors (see below), whose sum is σ = 80720640. Its totient is φ = 8452224.

The previous prime is 29926411. The next prime is 29926441. The reversal of 29926428 is 82462992.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 29926428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5475 + ... + 9477.

It is an arithmetic number, because the mean of its divisors is an integer number (1681680).

Almost surely, 2^29926428 is an apocalyptic number.

29926428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29926428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40360320).

29926428 is an abundant number, since it is smaller than the sum of its proper divisors (50794212).

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

29926428 is a wasteful number, since it uses less digits than its factorization.

29926428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106 (or 4104 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 29926428 is about 5470.5052783084. The cubic root of 29926428 is about 310.4690367707.

The spelling of 29926428 in words is "twenty-nine million, nine hundred twenty-six thousand, four hundred twenty-eight".