302542040 has 32 divisors (see below), whose sum is σ = 681594480. Its totient is φ = 120861312.

The previous prime is 302542039. The next prime is 302542057. The reversal of 302542040 is 40245203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29687 + ... + 38553.

Almost surely, 2^302542040 is an apocalyptic number.

It is an amenable number.

302542040 is an abundant number, since it is smaller than the sum of its proper divisors (379052440).

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

302542040 is a wasteful number, since it uses less digits than its factorization.

302542040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9731 (or 9727 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 302542040 is about 17393.7356539646. The cubic root of 302542040 is about 671.3184404506.

Adding to 302542040 its reverse (40245203), we get a palindrome (342787243).

The spelling of 302542040 in words is "three hundred two million, five hundred forty-two thousand, forty".