37240009 has 4 divisors (see below), whose sum is σ = 37258704. Its totient is φ = 37221316.

The previous prime is 37239991. The next prime is 37240037. The reversal of 37240009 is 90004273.

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 37240009 - 2⁵ = 37239977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37240109) 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, 5947 + ... + 10480.

It is an arithmetic number, because the mean of its divisors is an integer number (9314676).

Almost surely, 2^37240009 is an apocalyptic number.

It is an amenable number.

37240009 is a deficient number, since it is larger than the sum of its proper divisors (18695).

37240009 is a wasteful number, since it uses less digits than its factorization.

37240009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18694.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 37240009 is about 6102.4592583646. The cubic root of 37240009 is about 333.9411402608.

The spelling of 37240009 in words is "thirty-seven million, two hundred forty thousand, nine".