20430374346 has 24 divisors (see below), whose sum is σ = 44679514464. Its totient is φ = 6746478120.

The previous prime is 20430374339. The next prime is 20430374351. The reversal of 20430374346 is 64347303402.

20430374346 = 13765² + 13766² + ... + 13871².

20430374346 is a `hidden beast` number, since 2 + 0 + 4 + 303 + 7 + 4 + 346 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20430374346.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5301910 + ... + 5305761.

It is an arithmetic number, because the mean of its divisors is an integer number (1861646436).

Almost surely, 2^20430374346 is an apocalyptic number.

20430374346 is an abundant number, since it is smaller than the sum of its proper divisors (24249140118).

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

20430374346 is a wasteful number, since it uses less digits than its factorization.

20430374346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10607786 (or 10607783 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 36.

Adding to 20430374346 its reverse (64347303402), we get a palindrome (84777677748).

The spelling of 20430374346 in words is "twenty billion, four hundred thirty million, three hundred seventy-four thousand, three hundred forty-six".