40154164 has 12 divisors (see below), whose sum is σ = 70346500. Its totient is φ = 20055168.

The previous prime is 40154137. The next prime is 40154171. The reversal of 40154164 is 46145104.

It can be written as a sum of positive squares in 2 ways, for example, as 14062500 + 26091664 = 3750^2 + 5108^2 .

It is a super-2 number, since 2×40154164² = 3224713773077792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 939 + ... + 9010.

Almost surely, 2^40154164 is an apocalyptic number.

It is an amenable number.

40154164 is a deficient number, since it is larger than the sum of its proper divisors (30192336).

40154164 is a wasteful number, since it uses less digits than its factorization.

40154164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962 (or 10960 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40154164 is about 6336.7313340554. The cubic root of 40154164 is about 342.4339873132.

Adding to 40154164 its reverse (46145104), we get a palindrome (86299268).

The spelling of 40154164 in words is "forty million, one hundred fifty-four thousand, one hundred sixty-four".