40034521 has 4 divisors (see below), whose sum is σ = 40214272. Its totient is φ = 39854772.

The previous prime is 40034503. The next prime is 40034531. The reversal of 40034521 is 12543004.

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 40034521 - 2²¹ = 37937369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40034531) 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, 89541 + ... + 89986.

It is an arithmetic number, because the mean of its divisors is an integer number (10053568).

Almost surely, 2^40034521 is an apocalyptic number.

It is an amenable number.

40034521 is a deficient number, since it is larger than the sum of its proper divisors (179751).

40034521 is a wasteful number, since it uses less digits than its factorization.

40034521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179750.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40034521 is about 6327.2838564427. The cubic root of 40034521 is about 342.0935445125.

Adding to 40034521 its reverse (12543004), we get a palindrome (52577525).

The spelling of 40034521 in words is "forty million, thirty-four thousand, five hundred twenty-one".