302140026 has 24 divisors (see below), whose sum is σ = 656301204. Its totient is φ = 100457280.

The previous prime is 302140019. The next prime is 302140037. The reversal of 302140026 is 620041203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 255968001 + 46172025 = 15999^2 + 6795^2 .

It is a super-2 number, since 2×302140026² = 182577190622561352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 302139990 and 302140008.

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 11 ways as a sum of consecutive naturals, for example, 13995 + ... + 28286.

Almost surely, 2^302140026 is an apocalyptic number.

302140026 is an abundant number, since it is smaller than the sum of its proper divisors (354161178).

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

302140026 is a wasteful number, since it uses less digits than its factorization.

302140026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42686 (or 42683 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 302140026 is about 17382.1755255204. The cubic root of 302140026 is about 671.0209621924.

Adding to 302140026 its reverse (620041203), we get a palindrome (922181229).

The spelling of 302140026 in words is "three hundred two million, one hundred forty thousand, twenty-six".