40984785 has 20 divisors (see below), whose sum is σ = 73469748. Its totient is φ = 21858336.

The previous prime is 40984777. The next prime is 40984793. The reversal of 40984785 is 58748904.

It is an interprime number because it is at equal distance from previous prime (40984777) and next prime (40984793).

It can be written as a sum of positive squares in 2 ways, for example, as 26967249 + 14017536 = 5193^2 + 3744^2 .

It is not a de Polignac number, because 40984785 - 2³ = 40984777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40984785.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 50194 + ... + 51003.

Almost surely, 2^40984785 is an apocalyptic number.

40984785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40984785 is a deficient number, since it is larger than the sum of its proper divisors (32484963).

40984785 is a wasteful number, since it uses less digits than its factorization.

40984785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101214 (or 101205 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 40984785 is about 6401.9360352943. The cubic root of 40984785 is about 344.7790645940.

The spelling of 40984785 in words is "forty million, nine hundred eighty-four thousand, seven hundred eighty-five".