513963390 has 32 divisors (see below), whose sum is σ = 1248379776. Its totient is φ = 135404960.

The previous prime is 513963379. The next prime is 513963407. The reversal of 513963390 is 93369315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100716 + ... + 105695.

It is an arithmetic number, because the mean of its divisors is an integer number (39011868).

Almost surely, 2^513963390 is an apocalyptic number.

513963390 is an abundant number, since it is smaller than the sum of its proper divisors (734416386).

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

513963390 is a wasteful number, since it uses less digits than its factorization.

513963390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206504.

The product of its (nonzero) digits is 65610, while the sum is 39.

The square root of 513963390 is about 22670.7606841941. The cubic root of 513963390 is about 801.0212946002.

The spelling of 513963390 in words is "five hundred thirteen million, nine hundred sixty-three thousand, three hundred ninety".