40029880 has 32 divisors (see below), whose sum is σ = 98256240. Its totient is φ = 14556160.

The previous prime is 40029851. The next prime is 40029901. The reversal of 40029880 is 8892004.

40029880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 45049 + ... + 45928.

Almost surely, 2^40029880 is an apocalyptic number.

40029880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40029880 is an abundant number, since it is smaller than the sum of its proper divisors (58226360).

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

40029880 is a wasteful number, since it uses less digits than its factorization.

40029880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90999 (or 90995 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 40029880 is about 6326.9171007687. The cubic root of 40029880 is about 342.0803249422.

The spelling of 40029880 in words is "forty million, twenty-nine thousand, eight hundred eighty".