40469394 has 48 divisors (see below), whose sum is σ = 94802400. Its totient is φ = 11483136.

The previous prime is 40469393. The next prime is 40469417. The reversal of 40469394 is 49396404.

It is not an unprimeable number, because it can be changed into a prime (40469393) 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 23 ways as a sum of consecutive naturals, for example, 52242 + ... + 53010.

It is an arithmetic number, because the mean of its divisors is an integer number (1975050).

Almost surely, 2^40469394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40469394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47401200).

40469394 is an abundant number, since it is smaller than the sum of its proper divisors (54333006).

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

40469394 is a wasteful number, since it uses less digits than its factorization.

40469394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 40469394 is about 6361.5559417488. Note that the first 3 decimals coincide. The cubic root of 40469394 is about 343.3277444865.

The spelling of 40469394 in words is "forty million, four hundred sixty-nine thousand, three hundred ninety-four".