40031470 has 8 divisors (see below), whose sum is σ = 72056664. Its totient is φ = 16012584.

The previous prime is 40031419. The next prime is 40031473. The reversal of 40031470 is 7413004.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40031473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001564 + ... + 2001583.

It is an arithmetic number, because the mean of its divisors is an integer number (9007083).

Almost surely, 2^40031470 is an apocalyptic number.

40031470 is a deficient number, since it is larger than the sum of its proper divisors (32025194).

40031470 is a wasteful number, since it uses less digits than its factorization.

40031470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003154.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 40031470 is about 6327.0427531351. The cubic root of 40031470 is about 342.0848540633.

Adding to 40031470 its reverse (7413004), we get a palindrome (47444474).

The spelling of 40031470 in words is "forty million, thirty-one thousand, four hundred seventy".