40503970 has 16 divisors (see below), whose sum is σ = 78515640. Its totient is φ = 14955264.

The previous prime is 40503961. The next prime is 40503973. The reversal of 40503970 is 7930504.

It can be written as a sum of positive squares in 4 ways, for example, as 24830289 + 15673681 = 4983^2 + 3959^2 .

It is not an unprimeable number, because it can be changed into a prime (40503973) 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, 155655 + ... + 155914.

Almost surely, 2^40503970 is an apocalyptic number.

40503970 is a deficient number, since it is larger than the sum of its proper divisors (38011670).

40503970 is a wasteful number, since it uses less digits than its factorization.

40503970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311589.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 40503970 is about 6364.2729356934. The cubic root of 40503970 is about 343.4254934254.

The spelling of 40503970 in words is "forty million, five hundred three thousand, nine hundred seventy".