40144434 has 32 divisors (see below), whose sum is σ = 87830784. Its totient is φ = 12131280.

The previous prime is 40144421. The next prime is 40144459. The reversal of 40144434 is 43444104.

It is a super-2 number, since 2×40144434² = 3223151162360712, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 33937 + ... + 35099.

It is an arithmetic number, because the mean of its divisors is an integer number (2744712).

Almost surely, 2^40144434 is an apocalyptic number.

40144434 is an abundant number, since it is smaller than the sum of its proper divisors (47686350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40144434 is a wasteful number, since it uses less digits than its factorization.

40144434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 40144434 is about 6335.9635415618. The cubic root of 40144434 is about 342.4063259906.

Adding to 40144434 its reverse (43444104), we get a palindrome (83588538).

It can be divided in two parts, 4014 and 4434, that added together give a palindrome (8448).

The spelling of 40144434 in words is "forty million, one hundred forty-four thousand, four hundred thirty-four".