40158298 has 4 divisors (see below), whose sum is σ = 60237450. Its totient is φ = 20079148.

The previous prime is 40158269. The next prime is 40158319. The reversal of 40158298 is 89285104.

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

It can be written as a sum of positive squares in only one way, i.e., 40157569 + 729 = 6337^2 + 27^2 .

It is a super-2 number, since 2×40158298² = 3225377796513608, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10039573 + ... + 10039576.

Almost surely, 2^40158298 is an apocalyptic number.

40158298 is a deficient number, since it is larger than the sum of its proper divisors (20079152).

40158298 is a wasteful number, since it uses less digits than its factorization.

40158298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20079151.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 40158298 is about 6337.0575190699. The cubic root of 40158298 is about 342.4457384691.

The spelling of 40158298 in words is "forty million, one hundred fifty-eight thousand, two hundred ninety-eight".