40300155 has 48 divisors (see below), whose sum is σ = 82427904. Its totient is φ = 17824320.

The previous prime is 40300151. The next prime is 40300157. The reversal of 40300155 is 55100304.

It is not a de Polignac number, because 40300155 - 2² = 40300151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40300151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7702 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (1717248).

Almost surely, 2^40300155 is an apocalyptic number.

40300155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40300155 is an abundant number, since it is smaller than the sum of its proper divisors (42127749).

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

40300155 is a wasteful number, since it uses less digits than its factorization.

40300155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176 (or 4173 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 40300155 is about 6348.2403073608. The cubic root of 40300155 is about 342.8484882488.

Adding to 40300155 its reverse (55100304), we get a palindrome (95400459).

The spelling of 40300155 in words is "forty million, three hundred thousand, one hundred fifty-five".