40740705 has 32 divisors (see below), whose sum is σ = 75582720. Its totient is φ = 20782080.

The previous prime is 40740691. The next prime is 40740719. The reversal of 40740705 is 50704704.

It is an interprime number because it is at equal distance from previous prime (40740691) and next prime (40740719).

It is not a de Polignac number, because 40740705 - 2⁶ = 40740641 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3456 + ... + 9665.

It is an arithmetic number, because the mean of its divisors is an integer number (2361960).

Almost surely, 2^40740705 is an apocalyptic number.

40740705 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40740705 is a deficient number, since it is larger than the sum of its proper divisors (34842015).

40740705 is a wasteful number, since it uses less digits than its factorization.

40740705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13158 (or 13152 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40740705 is about 6382.8445852927. The cubic root of 40740705 is about 344.0932711975.

The spelling of 40740705 in words is "forty million, seven hundred forty thousand, seven hundred five".