40492420 has 96 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 14192640.

The previous prime is 40492411. The next prime is 40492421. The reversal of 40492420 is 2429404.

40492420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40492421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 358284 + ... + 358396.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^40492420 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 40492420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48263040).

40492420 is an abundant number, since it is smaller than the sum of its proper divisors (56033660).

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

40492420 is a wasteful number, since it uses less digits than its factorization.

40492420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 40492420 is about 6363.3654617663. The cubic root of 40492420 is about 343.3928469010.

The spelling of 40492420 in words is "forty million, four hundred ninety-two thousand, four hundred twenty".