40498237 has 4 divisors (see below), whose sum is σ = 43613500. Its totient is φ = 37382976.

The previous prime is 40498229. The next prime is 40498247. The reversal of 40498237 is 73289404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10621081 + 29877156 = 3259^2 + 5466^2 .

It is a cyclic number.

It is not a de Polignac number, because 40498237 - 2³ = 40498229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40498196 and 40498205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40498247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557612 + ... + 1557637.

It is an arithmetic number, because the mean of its divisors is an integer number (10903375).

Almost surely, 2^40498237 is an apocalyptic number.

It is an amenable number.

40498237 is a deficient number, since it is larger than the sum of its proper divisors (3115263).

40498237 is a wasteful number, since it uses less digits than its factorization.

40498237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115262.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 40498237 is about 6363.8225148098. The cubic root of 40498237 is about 343.4092896537.

The spelling of 40498237 in words is "forty million, four hundred ninety-eight thousand, two hundred thirty-seven".