40144234 has 16 divisors (see below), whose sum is σ = 64961568. Its totient is φ = 18495792.

The previous prime is 40144229. The next prime is 40144301. The reversal of 40144234 is 43244104.

It is a super-2 number, since 2×40144234² = 3223119046893512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20569 + ... + 22435.

It is an arithmetic number, because the mean of its divisors is an integer number (4060098).

Almost surely, 2^40144234 is an apocalyptic number.

40144234 is a deficient number, since it is larger than the sum of its proper divisors (24817334).

40144234 is a wasteful number, since it uses less digits than its factorization.

40144234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 40144234 is about 6335.9477586230. The cubic root of 40144234 is about 342.4057573656.

Adding to 40144234 its reverse (43244104), we get a palindrome (83388338).

The spelling of 40144234 in words is "forty million, one hundred forty-four thousand, two hundred thirty-four".