29442725 has 36 divisors (see below), whose sum is σ = 42208236. Its totient is φ = 20183040.

The previous prime is 29442689. The next prime is 29442731. The reversal of 29442725 is 52724492.

It can be written as a sum of positive squares in 18 ways, for example, as 18267076 + 11175649 = 4274^2 + 3343^2 .

It is not a de Polignac number, because 29442725 - 2¹⁰ = 29441701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 403289 + ... + 403361.

It is an arithmetic number, because the mean of its divisors is an integer number (1172451).

Almost surely, 2^29442725 is an apocalyptic number.

29442725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29442725 is a deficient number, since it is larger than the sum of its proper divisors (12765511).

29442725 is a wasteful number, since it uses less digits than its factorization.

29442725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 108 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 29442725 is about 5426.1150927713. The cubic root of 29442725 is about 308.7872318195.

The spelling of 29442725 in words is "twenty-nine million, four hundred forty-two thousand, seven hundred twenty-five".