40023154 has 8 divisors (see below), whose sum is σ = 60432768. Its totient is φ = 19878900.

The previous prime is 40023149. The next prime is 40023157. The reversal of 40023154 is 45132004.

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

It is a super-3 number, since 3×40023154³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (40023157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65962 + ... + 66565.

It is an arithmetic number, because the mean of its divisors is an integer number (7554096).

Almost surely, 2^40023154 is an apocalyptic number.

40023154 is a deficient number, since it is larger than the sum of its proper divisors (20409614).

40023154 is a wasteful number, since it uses less digits than its factorization.

40023154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132680.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40023154 is about 6326.3855399430. The cubic root of 40023154 is about 342.0611645788.

Adding to 40023154 its reverse (45132004), we get a palindrome (85155158).

The spelling of 40023154 in words is "forty million, twenty-three thousand, one hundred fifty-four".