40203130 has 32 divisors (see below), whose sum is σ = 83592000. Its totient is φ = 13758720.

The previous prime is 40203101. The next prime is 40203133. The reversal of 40203130 is 3130204.

It is a self number, because there is not a number n which added to its sum of digits gives 40203130.

It is not an unprimeable number, because it can be changed into a prime (40203133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8880 + ... + 12619.

It is an arithmetic number, because the mean of its divisors is an integer number (2612250).

Almost surely, 2^40203130 is an apocalyptic number.

40203130 is an abundant number, since it is smaller than the sum of its proper divisors (43388870).

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

40203130 is a wasteful number, since it uses less digits than its factorization.

40203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21534.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 40203130 is about 6340.5938207710. The cubic root of 40203130 is about 342.5731244936.

Adding to 40203130 its reverse (3130204), we get a palindrome (43333334).

The spelling of 40203130 in words is "forty million, two hundred three thousand, one hundred thirty".