40470490 has 8 divisors (see below), whose sum is σ = 72846900. Its totient is φ = 16188192.

The previous prime is 40470481. The next prime is 40470491. The reversal of 40470490 is 9407404.

It can be written as a sum of positive squares in 2 ways, for example, as 33558849 + 6911641 = 5793^2 + 2629^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40470491) 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, 2023515 + ... + 2023534.

Almost surely, 2^40470490 is an apocalyptic number.

40470490 is a deficient number, since it is larger than the sum of its proper divisors (32376410).

40470490 is a wasteful number, since it uses less digits than its factorization.

40470490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047056.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40470490 is about 6361.6420836133. The cubic root of 40470490 is about 343.3308438148.

Adding to 40470490 its reverse (9407404), we get a palindrome (49877894).

The spelling of 40470490 in words is "forty million, four hundred seventy thousand, four hundred ninety".