40002798 has 32 divisors (see below), whose sum is σ = 89413632. Its totient is φ = 11825600.

The previous prime is 40002797. The next prime is 40002799. The reversal of 40002798 is 89720004.

40002798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40002797) and next prime (40002799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002793) 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 15 ways as a sum of consecutive naturals, for example, 4686 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (2794176).

Almost surely, 2^40002798 is an apocalyptic number.

40002798 is an abundant number, since it is smaller than the sum of its proper divisors (49410834).

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

40002798 is a wasteful number, since it uses less digits than its factorization.

40002798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14840.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 40002798 is about 6324.7765177910. The cubic root of 40002798 is about 342.0031633372.

The spelling of 40002798 in words is "forty million, two thousand, seven hundred ninety-eight".