40305030 has 16 divisors (see below), whose sum is σ = 96732144. Its totient is φ = 10748000.

The previous prime is 40305007. The next prime is 40305043. The reversal of 40305030 is 3050304.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671721 + ... + 671780.

It is an arithmetic number, because the mean of its divisors is an integer number (6045759).

Almost surely, 2^40305030 is an apocalyptic number.

40305030 is an abundant number, since it is smaller than the sum of its proper divisors (56427114).

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

40305030 is a wasteful number, since it uses less digits than its factorization.

40305030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343511.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 40305030 is about 6348.6242604205. The cubic root of 40305030 is about 342.8623121740.

Adding to 40305030 its reverse (3050304), we get a palindrome (43355334).

The spelling of 40305030 in words is "forty million, three hundred five thousand, thirty".