40473856 has 36 divisors (see below), whose sum is σ = 82992532. Its totient is φ = 19685376.

The previous prime is 40473841. The next prime is 40473863. The reversal of 40473856 is 65837404.

It can be written as a sum of positive squares in 2 ways, for example, as 24601600 + 15872256 = 4960^2 + 3984^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7336 + ... + 11608.

Almost surely, 2^40473856 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 40473856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41496266).

40473856 is an abundant number, since it is smaller than the sum of its proper divisors (42518676).

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

40473856 is an equidigital number, since it uses as much as digits as its factorization.

40473856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 40473856 is about 6361.9066324491. The cubic root of 40473856 is about 343.3403620224.

The spelling of 40473856 in words is "forty million, four hundred seventy-three thousand, eight hundred fifty-six".