40338498 has 16 divisors (see below), whose sum is σ = 81650016. Its totient is φ = 13284000.

The previous prime is 40338479. The next prime is 40338503. The reversal of 40338498 is 89483304.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40003 + ... + 40998.

It is an arithmetic number, because the mean of its divisors is an integer number (5103126).

Almost surely, 2^40338498 is an apocalyptic number.

40338498 is an abundant number, since it is smaller than the sum of its proper divisors (41311518).

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

40338498 is a wasteful number, since it uses less digits than its factorization.

40338498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81089.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 40338498 is about 6351.2595601188. The cubic root of 40338498 is about 342.9571865292.

It can be divided in two parts, 40338 and 498, that multiplied together give a square (20088324 = 4482²).

The spelling of 40338498 in words is "forty million, three hundred thirty-eight thousand, four hundred ninety-eight".