40149148 has 24 divisors (see below), whose sum is σ = 76120128. Its totient is φ = 18419136.

The previous prime is 40149133. The next prime is 40149149. The reversal of 40149148 is 84194104.

It is a super-2 number, since 2×40149148² = 3223908170251808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40149149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6765 + ... + 11227.

It is an arithmetic number, because the mean of its divisors is an integer number (3171672).

Almost surely, 2^40149148 is an apocalyptic number.

It is an amenable number.

40149148 is a deficient number, since it is larger than the sum of its proper divisors (35970980).

40149148 is a wasteful number, since it uses less digits than its factorization.

40149148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653 (or 4651 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 40149148 is about 6336.3355340449. The cubic root of 40149148 is about 342.4197279335.

The spelling of 40149148 in words is "forty million, one hundred forty-nine thousand, one hundred forty-eight".