29050640 has 40 divisors (see below), whose sum is σ = 68661528. Its totient is φ = 11427840.

The previous prime is 29050631. The next prime is 29050643. The reversal of 29050640 is 4605092.

It can be written as a sum of positive squares in 4 ways, for example, as 2999824 + 26050816 = 1732^2 + 5104^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (29050643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904 + ... + 7856.

Almost surely, 2^29050640 is an apocalyptic number.

29050640 is a gapful number since it is divisible by the number (20) 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 29050640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34330764).

29050640 is an abundant number, since it is smaller than the sum of its proper divisors (39610888).

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

29050640 is a wasteful number, since it uses less digits than its factorization.

29050640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027 (or 6021 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 29050640 is about 5389.8645623058. The cubic root of 29050640 is about 307.4104086057.

The spelling of 29050640 in words is "twenty-nine million, fifty thousand, six hundred forty".