40149118 has 4 divisors (see below), whose sum is σ = 60223680. Its totient is φ = 20074558.

The previous prime is 40149101. The next prime is 40149133. The reversal of 40149118 is 81194104.

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

It is a super-2 number, since 2×40149118² = 3223903352355848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037278 + ... + 10037281.

It is an arithmetic number, because the mean of its divisors is an integer number (15055920).

Almost surely, 2^40149118 is an apocalyptic number.

40149118 is a deficient number, since it is larger than the sum of its proper divisors (20074562).

40149118 is a wasteful number, since it uses less digits than its factorization.

40149118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20074561.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 40149118 is about 6336.3331667456. Note that the first 3 decimals coincide. The cubic root of 40149118 is about 342.4196426466.

The spelling of 40149118 in words is "forty million, one hundred forty-nine thousand, one hundred eighteen".