40698812 has 72 divisors (see below), whose sum is σ = 92695680. Its totient is φ = 15452640.

The previous prime is 40698811. The next prime is 40698829. The reversal of 40698812 is 21889604.

40698812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40698812² = 3312786596422688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40698811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92489 + ... + 92927.

It is an arithmetic number, because the mean of its divisors is an integer number (1287440).

Almost surely, 2^40698812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40698812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46347840).

40698812 is an abundant number, since it is smaller than the sum of its proper divisors (51996868).

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

40698812 is a wasteful number, since it uses less digits than its factorization.

40698812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 40698812 is about 6379.5620539344. The cubic root of 40698812 is about 343.9752889226.

The spelling of 40698812 in words is "forty million, six hundred ninety-eight thousand, eight hundred twelve".