40302512 has 20 divisors (see below), whose sum is σ = 82679976. Its totient is φ = 18965760.

The previous prime is 40302503. The next prime is 40302533. The reversal of 40302512 is 21520304.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73814 + ... + 74357.

Almost surely, 2^40302512 is an apocalyptic number.

It is an amenable number.

40302512 is an abundant number, since it is smaller than the sum of its proper divisors (42377464).

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

40302512 is a wasteful number, since it uses less digits than its factorization.

40302512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148196 (or 148190 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40302512 is about 6348.4259466422. The cubic root of 40302512 is about 342.8551720786.

Adding to 40302512 its reverse (21520304), we get a palindrome (61822816).

The spelling of 40302512 in words is "forty million, three hundred two thousand, five hundred twelve".