40470390 has 24 divisors (see below), whose sum is σ = 105223248. Its totient is φ = 10792080.

The previous prime is 40470379. The next prime is 40470413. The reversal of 40470390 is 9307404.

It is a congruent number.

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, 224746 + ... + 224925.

It is an arithmetic number, because the mean of its divisors is an integer number (4384302).

Almost surely, 2^40470390 is an apocalyptic number.

40470390 is an abundant number, since it is smaller than the sum of its proper divisors (64752858).

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

40470390 is a wasteful number, since it uses less digits than its factorization.

40470390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449684 (or 449681 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 40470390 is about 6361.6342240025. The cubic root of 40470390 is about 343.3305610316.

Adding to 40470390 its reverse (9307404), we get a palindrome (49777794).

The spelling of 40470390 in words is "forty million, four hundred seventy thousand, three hundred ninety".