40306146 has 16 divisors (see below), whose sum is σ = 81064800. Its totient is φ = 13359968.

The previous prime is 40306141. The next prime is 40306181. The reversal of 40306146 is 64160304.

It is not an unprimeable number, because it can be changed into a prime (40306141) 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, 17691 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (5066550).

Almost surely, 2^40306146 is an apocalyptic number.

40306146 is an abundant number, since it is smaller than the sum of its proper divisors (40758654).

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

40306146 is a wasteful number, since it uses less digits than its factorization.

40306146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37713.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40306146 is about 6348.7121528701. The cubic root of 40306146 is about 342.8654766327.

The spelling of 40306146 in words is "forty million, three hundred six thousand, one hundred forty-six".