40346787 has 16 divisors (see below), whose sum is σ = 58220288. Its totient is φ = 24706080.

The previous prime is 40346783. The next prime is 40346791. The reversal of 40346787 is 78764304.

It is a happy number.

40346787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40346783) and next prime (40346791).

It is not a de Polignac number, because 40346787 - 2² = 40346783 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40346783) 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 15 ways as a sum of consecutive naturals, for example, 5778 + ... + 10680.

It is an arithmetic number, because the mean of its divisors is an integer number (3638768).

Almost surely, 2^40346787 is an apocalyptic number.

40346787 is a deficient number, since it is larger than the sum of its proper divisors (17873501).

40346787 is a wasteful number, since it uses less digits than its factorization.

40346787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 40346787 is about 6351.9120743285. The cubic root of 40346787 is about 342.9806758968.

The spelling of 40346787 in words is "forty million, three hundred forty-six thousand, seven hundred eighty-seven".