40404850 has 12 divisors (see below), whose sum is σ = 75153114. Its totient is φ = 16161920.

The previous prime is 40404841. The next prime is 40404853. The reversal of 40404850 is 5840404.

It can be written as a sum of positive squares in 3 ways, for example, as 19088161 + 21316689 = 4369^2 + 4617^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (40404853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 403999 + ... + 404098.

Almost surely, 2^40404850 is an apocalyptic number.

40404850 is a deficient number, since it is larger than the sum of its proper divisors (34748264).

40404850 is a wasteful number, since it uses less digits than its factorization.

40404850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808109 (or 808104 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 40404850 is about 6356.4809446737. The cubic root of 40404850 is about 343.1451246929.

The spelling of 40404850 in words is "forty million, four hundred four thousand, eight hundred fifty".