40958818 has 4 divisors (see below), whose sum is σ = 61438230. Its totient is φ = 20479408.

The previous prime is 40958807. The next prime is 40958849. The reversal of 40958818 is 81885904.

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., 40106889 + 851929 = 6333^2 + 923^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10239703 + ... + 10239706.

Almost surely, 2^40958818 is an apocalyptic number.

40958818 is a deficient number, since it is larger than the sum of its proper divisors (20479412).

40958818 is a wasteful number, since it uses less digits than its factorization.

40958818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20479411.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 40958818 is about 6399.9076555838. The cubic root of 40958818 is about 344.7062345636.

The spelling of 40958818 in words is "forty million, nine hundred fifty-eight thousand, eight hundred eighteen".