40002498 has 20 divisors (see below), whose sum is σ = 89635590. Its totient is φ = 13334112.

The previous prime is 40002491. The next prime is 40002559. The reversal of 40002498 is 89420004.

It can be written as a sum of positive squares in only one way, i.e., 35605089 + 4397409 = 5967^2 + 2097^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40002491) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 123303 + ... + 123626.

Almost surely, 2^40002498 is an apocalyptic number.

40002498 is an abundant number, since it is smaller than the sum of its proper divisors (49633092).

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

40002498 is a wasteful number, since it uses less digits than its factorization.

40002498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246943 (or 246934 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 40002498 is about 6324.7528014935. The cubic root of 40002498 is about 342.0023083870.

The spelling of 40002498 in words is "forty million, two thousand, four hundred ninety-eight".