40078148 has 24 divisors (see below), whose sum is σ = 77075040. Its totient is φ = 18083520.

The previous prime is 40078147. The next prime is 40078219. The reversal of 40078148 is 84187004.

It is a super-3 number, since 3×40078148³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40078147) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2840 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (3211460).

Almost surely, 2^40078148 is an apocalyptic number.

It is an amenable number.

40078148 is a deficient number, since it is larger than the sum of its proper divisors (36996892).

40078148 is a wasteful number, since it uses less digits than its factorization.

40078148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707 (or 6705 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 40078148 is about 6330.7304475866. The cubic root of 40078148 is about 342.2177631179.

The spelling of 40078148 in words is "forty million, seventy-eight thousand, one hundred forty-eight".