513421402 has 16 divisors (see below), whose sum is σ = 841754592. Its totient is φ = 233426160.

The previous prime is 513421399. The next prime is 513421421. The reversal of 513421402 is 204124315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145624 + ... + 149107.

It is an arithmetic number, because the mean of its divisors is an integer number (52609662).

Almost surely, 2^513421402 is an apocalyptic number.

513421402 is a deficient number, since it is larger than the sum of its proper divisors (328333190).

513421402 is a wasteful number, since it uses less digits than its factorization.

513421402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294813.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 513421402 is about 22658.8040725895. The cubic root of 513421402 is about 800.7396295162.

Adding to 513421402 its reverse (204124315), we get a palindrome (717545717).

The spelling of 513421402 in words is "five hundred thirteen million, four hundred twenty-one thousand, four hundred two".