40369601 has 4 divisors (see below), whose sum is σ = 40382400. Its totient is φ = 40356804.

The previous prime is 40369597. The next prime is 40369607. The reversal of 40369601 is 10696304.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40369601 - 2² = 40369597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40369607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (10095600).

Almost surely, 2^40369601 is an apocalyptic number.

It is an amenable number.

40369601 is a deficient number, since it is larger than the sum of its proper divisors (12799).

40369601 is an equidigital number, since it uses as much as digits as its factorization.

40369601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12798.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40369601 is about 6353.7076577381. The cubic root of 40369601 is about 343.0453096001.

The spelling of 40369601 in words is "forty million, three hundred sixty-nine thousand, six hundred one".