40628863 has 8 divisors (see below), whose sum is σ = 44737920. Its totient is φ = 36589080.

The previous prime is 40628839. The next prime is 40628869. The reversal of 40628863 is 36882604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40628863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40628869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16083 + ... + 18436.

It is an arithmetic number, because the mean of its divisors is an integer number (5592240).

Almost surely, 2^40628863 is an apocalyptic number.

40628863 is a deficient number, since it is larger than the sum of its proper divisors (4109057).

40628863 is a wasteful number, since it uses less digits than its factorization.

40628863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34637.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 40628863 is about 6374.0774234394. The cubic root of 40628863 is about 343.7781126099.

It can be divided in two parts, 406288 and 63, that added together give a triangular number (406351 = T₉₀₁).

The spelling of 40628863 in words is "forty million, six hundred twenty-eight thousand, eight hundred sixty-three".