29065428 has 54 divisors (see below), whose sum is σ = 85471386. Its totient is φ = 8303904.

The previous prime is 29065423. The next prime is 29065469. The reversal of 29065428 is 82456092.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22924944 + 6140484 = 4788^2 + 2478^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 29065392 and 29065401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29065423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6475 + ... + 10002.

Almost surely, 2^29065428 is an apocalyptic number.

29065428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29065428 is an abundant number, since it is smaller than the sum of its proper divisors (56405958).

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

29065428 is a wasteful number, since it uses less digits than its factorization.

29065428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16501 (or 16489 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 29065428 is about 5391.2362218697. The cubic root of 29065428 is about 307.4625613749.

The spelling of 29065428 in words is "twenty-nine million, sixty-five thousand, four hundred twenty-eight".