40424434 has 16 divisors (see below), whose sum is σ = 64753920. Its totient is φ = 18884880.

The previous prime is 40424431. The next prime is 40424441. The reversal of 40424434 is 43442404.

It is a junction number, because it is equal to n+sod(n) for n = 40424399 and 40424408.

It is not an unprimeable number, because it can be changed into a prime (40424431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9444 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (4047120).

Almost surely, 2^40424434 is an apocalyptic number.

40424434 is a deficient number, since it is larger than the sum of its proper divisors (24329486).

40424434 is a wasteful number, since it uses less digits than its factorization.

40424434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22545.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 40424434 is about 6358.0212330567. The cubic root of 40424434 is about 343.2005558988.

Adding to 40424434 its reverse (43442404), we get a palindrome (83866838).

The spelling of 40424434 in words is "forty million, four hundred twenty-four thousand, four hundred thirty-four".