40650015 has 32 divisors (see below), whose sum is σ = 74580480. Its totient is φ = 18520704.

The previous prime is 40649989. The next prime is 40650017. The reversal of 40650015 is 51005604.

It is a happy number.

40650015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40650015 - 2¹² = 40645919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 40649973 and 40650000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40650017) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 48621 + ... + 49449.

It is an arithmetic number, because the mean of its divisors is an integer number (2330640).

Almost surely, 2^40650015 is an apocalyptic number.

40650015 is a deficient number, since it is larger than the sum of its proper divisors (33930465).

40650015 is a wasteful number, since it uses less digits than its factorization.

40650015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 40650015 is about 6375.7364280528. The cubic root of 40650015 is about 343.8377609532.

Adding to 40650015 its reverse (51005604), we get a palindrome (91655619).

The spelling of 40650015 in words is "forty million, six hundred fifty thousand, fifteen".