40304037 has 4 divisors (see below), whose sum is σ = 53738720. Its totient is φ = 26869356.

The previous prime is 40303993. The next prime is 40304041. The reversal of 40304037 is 73040304.

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 not a de Polignac number, because 40304037 - 2⁶ = 40303973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304057) 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, 6717337 + ... + 6717342.

It is an arithmetic number, because the mean of its divisors is an integer number (13434680).

Almost surely, 2^40304037 is an apocalyptic number.

It is an amenable number.

40304037 is a deficient number, since it is larger than the sum of its proper divisors (13434683).

40304037 is a wasteful number, since it uses less digits than its factorization.

40304037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13434682.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40304037 is about 6348.5460540190. The cubic root of 40304037 is about 342.8594964372.

The spelling of 40304037 in words is "forty million, three hundred four thousand, thirty-seven".