40339998 has 16 divisors (see below), whose sum is σ = 89644560. Its totient is φ = 13446648.

The previous prime is 40339987. The next prime is 40340017. The reversal of 40339998 is 89993304.

40339998 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, 373465 + ... + 373572.

It is an arithmetic number, because the mean of its divisors is an integer number (5602785).

Almost surely, 2^40339998 is an apocalyptic number.

40339998 is an abundant number, since it is smaller than the sum of its proper divisors (49304562).

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

40339998 is a wasteful number, since it uses less digits than its factorization.

40339998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747048 (or 747042 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 40339998 is about 6351.3776458340. The cubic root of 40339998 is about 342.9614374676.

It can be divided in two parts, 403 and 39998, that added together give a square (40401 = 201²).

The spelling of 40339998 in words is "forty million, three hundred thirty-nine thousand, nine hundred ninety-eight".