40039601 has 4 divisors (see below), whose sum is σ = 45759552. Its totient is φ = 34319652.

The previous prime is 40039589. The next prime is 40039603. The reversal of 40039601 is 10693004.

40039601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40039601 - 2⁶ = 40039537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40039603) 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 3 ways as a sum of consecutive naturals, for example, 2859965 + ... + 2859978.

It is an arithmetic number, because the mean of its divisors is an integer number (11439888).

Almost surely, 2^40039601 is an apocalyptic number.

It is an amenable number.

40039601 is a deficient number, since it is larger than the sum of its proper divisors (5719951).

40039601 is an equidigital number, since it uses as much as digits as its factorization.

40039601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719950.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 40039601 is about 6327.6852797844. The cubic root of 40039601 is about 342.1080133731.

It can be divided in two parts, 400 and 39601, that multiplied together give a square (15840400 = 3980²).

The spelling of 40039601 in words is "forty million, thirty-nine thousand, six hundred one".