29392140 has 24 divisors (see below), whose sum is σ = 82298160. Its totient is φ = 7837888.

The previous prime is 29392093. The next prime is 29392141. The reversal of 29392140 is 4129392.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 29392098 and 29392107.

It is not an unprimeable number, because it can be changed into a prime (29392141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244875 + ... + 244994.

It is an arithmetic number, because the mean of its divisors is an integer number (3429090).

Almost surely, 2^29392140 is an apocalyptic number.

29392140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29392140 is an abundant number, since it is smaller than the sum of its proper divisors (52906020).

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

29392140 is a wasteful number, since it uses less digits than its factorization.

29392140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489881 (or 489879 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 29392140 is about 5421.4518350715. The cubic root of 29392140 is about 308.6102899077.

The spelling of 29392140 in words is "twenty-nine million, three hundred ninety-two thousand, one hundred forty".