29146940394 has 96 divisors (see below), whose sum is σ = 71593308864. Its totient is φ = 7798391040.

The previous prime is 29146940357. The next prime is 29146940399. The reversal of 29146940394 is 49304964192.

It is not an unprimeable number, because it can be changed into a prime (29146940399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 421774 + ... + 485990.

It is an arithmetic number, because the mean of its divisors is an integer number (745763634).

Almost surely, 2^29146940394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29146940394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35796654432).

29146940394 is an abundant number, since it is smaller than the sum of its proper divisors (42446368470).

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

29146940394 is a wasteful number, since it uses less digits than its factorization.

29146940394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64292 (or 64269 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 29146940394 in words is "twenty-nine billion, one hundred forty-six million, nine hundred forty thousand, three hundred ninety-four".