40121234 has 8 divisors (see below), whose sum is σ = 60399948. Its totient is φ = 19987920.

The previous prime is 40121231. The next prime is 40121243. The reversal of 40121234 is 43212104.

It can be written as a sum of positive squares in 2 ways, for example, as 39627025 + 494209 = 6295^2 + 703^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40121231) by changing a digit.

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, 35657 + ... + 36764.

Almost surely, 2^40121234 is an apocalyptic number.

40121234 is a deficient number, since it is larger than the sum of its proper divisors (20278714).

40121234 is a wasteful number, since it uses less digits than its factorization.

40121234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72700.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40121234 is about 6334.1324583561. The cubic root of 40121234 is about 342.3403528967.

Adding to 40121234 its reverse (43212104), we get a palindrome (83333338).

The spelling of 40121234 in words is "forty million, one hundred twenty-one thousand, two hundred thirty-four".