40429332 has 72 divisors (see below), whose sum is σ = 111750912. Its totient is φ = 12268800.

The previous prime is 40429327. The next prime is 40429339. The reversal of 40429332 is 23392404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40429296 and 40429305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40429339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17907 + ... + 20037.

It is an arithmetic number, because the mean of its divisors is an integer number (1552096).

Almost surely, 2^40429332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40429332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55875456).

40429332 is an abundant number, since it is smaller than the sum of its proper divisors (71321580).

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

40429332 is a wasteful number, since it uses less digits than its factorization.

40429332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2184 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 40429332 is about 6358.4064041236. The cubic root of 40429332 is about 343.2144165623.

The spelling of 40429332 in words is "forty million, four hundred twenty-nine thousand, three hundred thirty-two".