513421442 has 32 divisors (see below), whose sum is σ = 807404544. Its totient is φ = 244584000.

The previous prime is 513421429. The next prime is 513421451. The reversal of 513421442 is 244124315.

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, 1619468 + ... + 1619784.

It is an arithmetic number, because the mean of its divisors is an integer number (25231392).

Almost surely, 2^513421442 is an apocalyptic number.

513421442 is a deficient number, since it is larger than the sum of its proper divisors (293983102).

513421442 is a wasteful number, since it uses less digits than its factorization.

513421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its digits is 3840, while the sum is 26.

The square root of 513421442 is about 22658.8049552486. The cubic root of 513421442 is about 800.7396503110.

Adding to 513421442 its reverse (244124315), we get a palindrome (757545757).

The spelling of 513421442 in words is "five hundred thirteen million, four hundred twenty-one thousand, four hundred forty-two".