40246436 has 12 divisors (see below), whose sum is σ = 70821660. Its totient is φ = 20011680.

The previous prime is 40246399. The next prime is 40246439. The reversal of 40246436 is 63464204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 430336 + 39816100 = 656^2 + 6310^2 .

It is a super-2 number, since 2×40246436² = 3239551221404192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40246399 and 40246408.

It is not an unprimeable number, because it can be changed into a prime (40246439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27071 + ... + 28518.

It is an arithmetic number, because the mean of its divisors is an integer number (5901805).

Almost surely, 2^40246436 is an apocalyptic number.

It is an amenable number.

40246436 is a deficient number, since it is larger than the sum of its proper divisors (30575224).

40246436 is a wasteful number, since it uses less digits than its factorization.

40246436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55774 (or 55772 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 40246436 is about 6344.0078814579. The cubic root of 40246436 is about 342.6960846386.

The spelling of 40246436 in words is "forty million, two hundred forty-six thousand, four hundred thirty-six".