40302012 has 12 divisors (see below), whose sum is σ = 94038056. Its totient is φ = 13434000.

The previous prime is 40302011. The next prime is 40302023. The reversal of 40302012 is 21020304.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 3358501 = 40302012 / (4 + 0 + 3 + 0 + 2 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40302011) 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, 1679239 + ... + 1679262.

Almost surely, 2^40302012 is an apocalyptic number.

It is an amenable number.

40302012 is an abundant number, since it is smaller than the sum of its proper divisors (53736044).

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

40302012 is a wasteful number, since it uses less digits than its factorization.

40302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358508 (or 3358506 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40302012 is about 6348.3865666798. The cubic root of 40302012 is about 342.8537542324.

Adding to 40302012 its reverse (21020304), we get a palindrome (61322316).

The spelling of 40302012 in words is "forty million, three hundred two thousand, twelve".