40102078 has 8 divisors (see below), whose sum is σ = 61000560. Its totient is φ = 19768560.

The previous prime is 40102033. The next prime is 40102109. The reversal of 40102078 is 87020104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141063 + ... + 141346.

It is an arithmetic number, because the mean of its divisors is an integer number (7625070).

Almost surely, 2^40102078 is an apocalyptic number.

40102078 is a deficient number, since it is larger than the sum of its proper divisors (20898482).

40102078 is a wasteful number, since it uses less digits than its factorization.

40102078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282482.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 40102078 is about 6332.6201528277. The cubic root of 40102078 is about 342.2858604238.

The spelling of 40102078 in words is "forty million, one hundred two thousand, seventy-eight".