40354864 has 40 divisors (see below), whose sum is σ = 87614928. Its totient is φ = 17844480.

The previous prime is 40354861. The next prime is 40354883. The reversal of 40354864 is 46845304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40354861) 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 7 ways as a sum of consecutive naturals, for example, 3414 + ... + 9610.

Almost surely, 2^40354864 is an apocalyptic number.

40354864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40354864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43807464).

40354864 is an abundant number, since it is smaller than the sum of its proper divisors (47260064).

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

40354864 is a wasteful number, since it uses less digits than its factorization.

40354864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253 (or 6247 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 40354864 is about 6352.5478353177. The cubic root of 40354864 is about 343.0035614043.

The spelling of 40354864 in words is "forty million, three hundred fifty-four thousand, eight hundred sixty-four".