40293146 has 4 divisors (see below), whose sum is σ = 60439722. Its totient is φ = 20146572.

The previous prime is 40293137. The next prime is 40293157. The reversal of 40293146 is 64139204.

40293146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 22137025 + 18156121 = 4705^2 + 4261^2 .

It is a super-2 number, since 2×40293146² = 3247075229154632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073285 + ... + 10073288.

Almost surely, 2^40293146 is an apocalyptic number.

40293146 is a deficient number, since it is larger than the sum of its proper divisors (20146576).

40293146 is a wasteful number, since it uses less digits than its factorization.

40293146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20146575.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40293146 is about 6347.6882406117. The cubic root of 40293146 is about 342.8286110351.

The spelling of 40293146 in words is "forty million, two hundred ninety-three thousand, one hundred forty-six".