40274509 has 16 divisors (see below), whose sum is σ = 46632960. Its totient is φ = 34398000.

The previous prime is 40274501. The next prime is 40274527. The reversal of 40274509 is 90547204.

It is a cyclic number.

It is not a de Polignac number, because 40274509 - 2³ = 40274501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40274501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26644 + ... + 28114.

It is an arithmetic number, because the mean of its divisors is an integer number (2914560).

Almost surely, 2^40274509 is an apocalyptic number.

It is an amenable number.

40274509 is a deficient number, since it is larger than the sum of its proper divisors (6358451).

40274509 is a wasteful number, since it uses less digits than its factorization.

40274509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

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

The square root of 40274509 is about 6346.2200560649. The cubic root of 40274509 is about 342.7757461122.

The spelling of 40274509 in words is "forty million, two hundred seventy-four thousand, five hundred nine".