40146705 has 64 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 20217600.

The previous prime is 40146683. The next prime is 40146719. The reversal of 40146705 is 50764104.

It is not a de Polignac number, because 40146705 - 2⁶ = 40146641 is a prime.

It is a super-2 number, since 2×40146705² = 3223515844714050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 221715 + ... + 221895.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^40146705 is an apocalyptic number.

40146705 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40146705 is a deficient number, since it is larger than the sum of its proper divisors (35332335).

40146705 is a wasteful number, since it uses less digits than its factorization.

40146705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40146705 is about 6336.1427540736. The cubic root of 40146705 is about 342.4127825943.

The spelling of 40146705 in words is "forty million, one hundred forty-six thousand, seven hundred five".