40739297 has 4 divisors (see below), whose sum is σ = 41050416. Its totient is φ = 40428180.

The previous prime is 40739291. The next prime is 40739311. The reversal of 40739297 is 79293704.

40739297 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 40739297 - 2¹⁶ = 40673761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40739291) 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, 155363 + ... + 155624.

It is an arithmetic number, because the mean of its divisors is an integer number (10262604).

Almost surely, 2^40739297 is an apocalyptic number.

It is an amenable number.

40739297 is a deficient number, since it is larger than the sum of its proper divisors (311119).

40739297 is a wasteful number, since it uses less digits than its factorization.

40739297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311118.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 40739297 is about 6382.7342886885. The cubic root of 40739297 is about 344.0893071939.

The spelling of 40739297 in words is "forty million, seven hundred thirty-nine thousand, two hundred ninety-seven".