40204597 has 2 divisors, whose sum is σ = 40204598. Its totient is φ = 40204596.

The previous prime is 40204561. The next prime is 40204603. The reversal of 40204597 is 79540204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32729841 + 7474756 = 5721^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 40204597 - 2¹⁵ = 40171829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40205597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20102298 + 20102299.

It is an arithmetic number, because the mean of its divisors is an integer number (20102299).

Almost surely, 2^40204597 is an apocalyptic number.

It is an amenable number.

40204597 is a deficient number, since it is larger than the sum of its proper divisors (1).

40204597 is an equidigital number, since it uses as much as digits as its factorization.

40204597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40204597 is about 6340.7095028869. The cubic root of 40204597 is about 342.5772912393.

The spelling of 40204597 in words is "forty million, two hundred four thousand, five hundred ninety-seven".