302420031 has 16 divisors (see below), whose sum is σ = 421177344. Its totient is φ = 192655584.

The previous prime is 302419993. The next prime is 302420039. The reversal of 302420031 is 130024203.

It is not a de Polignac number, because 302420031 - 2⁶ = 302419967 is a prime.

It is a super-2 number, since 2×302420031² = 182915750300081922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302420039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106725 + ... + 109521.

It is an arithmetic number, because the mean of its divisors is an integer number (26323584).

Almost surely, 2^302420031 is an apocalyptic number.

302420031 is a deficient number, since it is larger than the sum of its proper divisors (118757313).

302420031 is a wasteful number, since it uses less digits than its factorization.

302420031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 302420031 is about 17390.2280318574. The cubic root of 302420031 is about 671.2281853305.

Adding to 302420031 its reverse (130024203), we get a palindrome (432444234).

The spelling of 302420031 in words is "three hundred two million, four hundred twenty thousand, thirty-one".