20430415742 has 8 divisors (see below), whose sum is σ = 33431589432. Its totient is φ = 9286552600.

The previous prime is 20430415727. The next prime is 20430415799. The reversal of 20430415742 is 24751403402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20430415742² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20430415699 and 20430415708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464327609 + ... + 464327652.

It is an arithmetic number, because the mean of its divisors is an integer number (4178948679).

Almost surely, 2^20430415742 is an apocalyptic number.

20430415742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20430415742 is a deficient number, since it is larger than the sum of its proper divisors (13001173690).

20430415742 is a wasteful number, since it uses less digits than its factorization.

20430415742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928655274.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 20430415742 in words is "twenty billion, four hundred thirty million, four hundred fifteen thousand, seven hundred forty-two".