29705490 has 24 divisors (see below), whose sum is σ = 77234508. Its totient is φ = 7921440.

The previous prime is 29705479. The next prime is 29705491. The reversal of 29705490 is 9450792.

It can be written as a sum of positive squares in 2 ways, for example, as 25130169 + 4575321 = 5013^2 + 2139^2 .

It is a super-2 number, since 2×29705490² = 1764832272280200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29705491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164941 + ... + 165120.

Almost surely, 2^29705490 is an apocalyptic number.

29705490 is an abundant number, since it is smaller than the sum of its proper divisors (47529018).

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

29705490 is a wasteful number, since it uses less digits than its factorization.

29705490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330074 (or 330071 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 29705490 is about 5450.2743050236. The cubic root of 29705490 is about 309.7031150028.

The spelling of 29705490 in words is "twenty-nine million, seven hundred five thousand, four hundred ninety".