29894140 has 12 divisors (see below), whose sum is σ = 62777736. Its totient is φ = 11957648.

The previous prime is 29894129. The next prime is 29894147. The reversal of 29894140 is 4149892.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 29894140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29894147) 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, 747334 + ... + 747373.

It is an arithmetic number, because the mean of its divisors is an integer number (5231478).

Almost surely, 2^29894140 is an apocalyptic number.

29894140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29894140 is an abundant number, since it is smaller than the sum of its proper divisors (32883596).

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

29894140 is a wasteful number, since it uses less digits than its factorization.

29894140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494716 (or 1494714 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 29894140 is about 5467.5533833699. The cubic root of 29894140 is about 310.3573402731.

The spelling of 29894140 in words is "twenty-nine million, eight hundred ninety-four thousand, one hundred forty".