29805400 has 24 divisors (see below), whose sum is σ = 69298020. Its totient is φ = 11922080.

The previous prime is 29805371. The next prime is 29805421. The reversal of 29805400 is 450892.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 74314 + ... + 74713.

Almost surely, 2^29805400 is an apocalyptic number.

29805400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29805400 is an abundant number, since it is smaller than the sum of its proper divisors (39492620).

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

29805400 is a wasteful number, since it uses less digits than its factorization.

29805400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149043 (or 149034 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 29805400 is about 5459.4322049092. The cubic root of 29805400 is about 310.0499399253.

The spelling of 29805400 in words is "twenty-nine million, eight hundred five thousand, four hundred".