40146340 has 24 divisors (see below), whose sum is σ = 90793080. Its totient is φ = 14823168.

The previous prime is 40146331. The next prime is 40146347. The reversal of 40146340 is 4364104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1444 + 40144896 = 38^2 + 6336^2 .

It is a super-2 number, since 2×40146340² = 3223457230791200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40146347) 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, 76945 + ... + 77464.

It is an arithmetic number, because the mean of its divisors is an integer number (3783045).

Almost surely, 2^40146340 is an apocalyptic number.

It is an amenable number.

40146340 is an abundant number, since it is smaller than the sum of its proper divisors (50646740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40146340 is a wasteful number, since it uses less digits than its factorization.

40146340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154431 (or 154429 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40146340 is about 6336.1139509955. The cubic root of 40146340 is about 342.4117448915.

The spelling of 40146340 in words is "forty million, one hundred forty-six thousand, three hundred forty".