40303012 has 12 divisors (see below), whose sum is σ = 70584220. Its totient is φ = 20136096.

The previous prime is 40302991. The next prime is 40303019. The reversal of 40303012 is 21030304.

It can be written as a sum of positive squares in 2 ways, for example, as 14333796 + 25969216 = 3786^2 + 5096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40302983 and 40303001.

It is not an unprimeable number, because it can be changed into a prime (40303019) 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, 3658 + ... + 9694.

Almost surely, 2^40303012 is an apocalyptic number.

It is an amenable number.

40303012 is a deficient number, since it is larger than the sum of its proper divisors (30281208).

40303012 is a wasteful number, since it uses less digits than its factorization.

40303012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710 (or 7708 counting only the distinct ones).

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

The square root of 40303012 is about 6348.4653263604. The cubic root of 40303012 is about 342.8565899131.

Adding to 40303012 its reverse (21030304), we get a palindrome (61333316).

The spelling of 40303012 in words is "forty million, three hundred three thousand, twelve".