40431450 has 24 divisors (see below), whose sum is σ = 100270368. Its totient is φ = 10781680.

The previous prime is 40431439. The next prime is 40431467. The reversal of 40431450 is 5413404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134622 + ... + 134921.

It is an arithmetic number, because the mean of its divisors is an integer number (4177932).

Almost surely, 2^40431450 is an apocalyptic number.

40431450 is an abundant number, since it is smaller than the sum of its proper divisors (59838918).

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

40431450 is a wasteful number, since it uses less digits than its factorization.

40431450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269558 (or 269553 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40431450 is about 6358.5729531083. The cubic root of 40431450 is about 343.2204098631.

Adding to 40431450 its reverse (5413404), we get a palindrome (45844854).

The spelling of 40431450 in words is "forty million, four hundred thirty-one thousand, four hundred fifty".