40192840 has 32 divisors (see below), whose sum is σ = 93555000. Its totient is φ = 15522304.

The previous prime is 40192793. The next prime is 40192871. The reversal of 40192840 is 4829104.

It can be written as a sum of positive squares in 4 ways, for example, as 26399044 + 13793796 = 5138^2 + 3714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40192799 and 40192808.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16165 + ... + 18484.

Almost surely, 2^40192840 is an apocalyptic number.

40192840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40192840 is an abundant number, since it is smaller than the sum of its proper divisors (53362160).

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

40192840 is a wasteful number, since it uses less digits than its factorization.

40192840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34689 (or 34685 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40192840 is about 6339.7823306483. The cubic root of 40192840 is about 342.5438947774.

It can be divided in two parts, 4019 and 2840, that added together give a cube (6859 = 19³).

The spelling of 40192840 in words is "forty million, one hundred ninety-two thousand, eight hundred forty".