515045838 has 32 divisors (see below), whose sum is σ = 1111275936. Its totient is φ = 158532608.

The previous prime is 515045827. The next prime is 515045849. The reversal of 515045838 is 838540515.

It is an interprime number because it is at equal distance from previous prime (515045827) and next prime (515045849).

It is a super-2 number, since 2×515045838² = 530544430482244488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 515045796 and 515045805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42231 + ... + 53042.

It is an arithmetic number, because the mean of its divisors is an integer number (34727373).

Almost surely, 2^515045838 is an apocalyptic number.

515045838 is an abundant number, since it is smaller than the sum of its proper divisors (596230098).

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

515045838 is a wasteful number, since it uses less digits than its factorization.

515045838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95348.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 515045838 is about 22694.6213451558. The cubic root of 515045838 is about 801.5832385858.

The spelling of 515045838 in words is "five hundred fifteen million, forty-five thousand, eight hundred thirty-eight".