40893690 has 32 divisors (see below), whose sum is σ = 98444160. Its totient is φ = 10871744.

The previous prime is 40893689. The next prime is 40893691. The reversal of 40893690 is 9639804.

It is an interprime number because it is at equal distance from previous prime (40893689) and next prime (40893691).

It is a super-2 number, since 2×40893690² = 3344587763632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40893691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8872 + ... + 12668.

It is an arithmetic number, because the mean of its divisors is an integer number (3076380).

Almost surely, 2^40893690 is an apocalyptic number.

40893690 is an abundant number, since it is smaller than the sum of its proper divisors (57550470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40893690 is a wasteful number, since it uses less digits than its factorization.

40893690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 40893690 is about 6394.8174328905. The cubic root of 40893690 is about 344.5234335746.

The spelling of 40893690 in words is "forty million, eight hundred ninety-three thousand, six hundred ninety".