29938540 has 12 divisors (see below), whose sum is σ = 62870976. Its totient is φ = 11975408.

The previous prime is 29938537. The next prime is 29938543. The reversal of 29938540 is 4583992.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (29938537) and next prime (29938543).

It is a junction number, because it is equal to n+sod(n) for n = 29938493 and 29938502.

It is not an unprimeable number, because it can be changed into a prime (29938543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748444 + ... + 748483.

It is an arithmetic number, because the mean of its divisors is an integer number (5239248).

Almost surely, 2^29938540 is an apocalyptic number.

29938540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29938540 is an abundant number, since it is smaller than the sum of its proper divisors (32932436).

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

29938540 is a wasteful number, since it uses less digits than its factorization.

29938540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496936 (or 1496934 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 29938540 is about 5471.6121938602. The cubic root of 29938540 is about 310.5109160731.

The spelling of 29938540 in words is "twenty-nine million, nine hundred thirty-eight thousand, five hundred forty".