40292840 has 64 divisors (see below), whose sum is σ = 104405760. Its totient is φ = 13708800.

The previous prime is 40292821. The next prime is 40292867. The reversal of 40292840 is 4829204.

40292840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×40292840³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41804 + ... + 42756.

It is an arithmetic number, because the mean of its divisors is an integer number (1631340).

Almost surely, 2^40292840 is an apocalyptic number.

40292840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40292840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52202880).

40292840 is an abundant number, since it is smaller than the sum of its proper divisors (64112920).

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

40292840 is a wasteful number, since it uses less digits than its factorization.

40292840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40292840 is about 6347.6641373028. The cubic root of 40292840 is about 342.8277431801.

The spelling of 40292840 in words is "forty million, two hundred ninety-two thousand, eight hundred forty".