40154234 has 16 divisors (see below), whose sum is σ = 61374120. Its totient is φ = 19699200.

The previous prime is 40154203. The next prime is 40154243. The reversal of 40154234 is 43245104.

40154234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31888609 + 8265625 = 5647^2 + 2875^2 .

It is a super-2 number, since 2×40154234² = 3224725016253512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32834 + ... + 34034.

Almost surely, 2^40154234 is an apocalyptic number.

40154234 is a deficient number, since it is larger than the sum of its proper divisors (21219886).

40154234 is a wasteful number, since it uses less digits than its factorization.

40154234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40154234 is about 6336.7368574054. The cubic root of 40154234 is about 342.4341862993.

Adding to 40154234 its reverse (43245104), we get a palindrome (83399338).

The spelling of 40154234 in words is "forty million, one hundred fifty-four thousand, two hundred thirty-four".