40246647 has 16 divisors (see below), whose sum is σ = 61416960. Its totient is φ = 22964832.

The previous prime is 40246631. The next prime is 40246691. The reversal of 40246647 is 74664204.

It is not a de Polignac number, because 40246647 - 2⁴ = 40246631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40246247) 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, 26973 + ... + 28425.

It is an arithmetic number, because the mean of its divisors is an integer number (3838560).

Almost surely, 2^40246647 is an apocalyptic number.

40246647 is a deficient number, since it is larger than the sum of its proper divisors (21170313).

40246647 is a wasteful number, since it uses less digits than its factorization.

40246647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 40246647 is about 6344.0245113020. The cubic root of 40246647 is about 342.6966835219.

The spelling of 40246647 in words is "forty million, two hundred forty-six thousand, six hundred forty-seven".