40805154 has 64 divisors (see below), whose sum is σ = 100356480. Its totient is φ = 12208320.

The previous prime is 40805143. The next prime is 40805161. The reversal of 40805154 is 45150804.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25189 + ... + 26759.

It is an arithmetic number, because the mean of its divisors is an integer number (1568070).

Almost surely, 2^40805154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40805154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50178240).

40805154 is an abundant number, since it is smaller than the sum of its proper divisors (59551326).

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

40805154 is a wasteful number, since it uses less digits than its factorization.

40805154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 40805154 is about 6387.8912013277. The cubic root of 40805154 is about 344.2746195862.

Adding to 40805154 its reverse (45150804), we get a palindrome (85955958).

The spelling of 40805154 in words is "forty million, eight hundred five thousand, one hundred fifty-four".