20430370415 has 48 divisors (see below), whose sum is σ = 32519636352. Its totient is φ = 12171027456.

The previous prime is 20430370409. The next prime is 20430370421. The reversal of 20430370415 is 51407303402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20430370409) and next prime (20430370421).

It is not a de Polignac number, because 20430370415 - 2¹⁰ = 20430369391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134519 + ... + 242808.

It is an arithmetic number, because the mean of its divisors is an integer number (677492424).

Almost surely, 2^20430370415 is an apocalyptic number.

20430370415 is a deficient number, since it is larger than the sum of its proper divisors (12089265937).

20430370415 is a wasteful number, since it uses less digits than its factorization.

20430370415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377376 (or 377369 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 20430370415 its reverse (51407303402), we get a palindrome (71837673817).

The spelling of 20430370415 in words is "twenty billion, four hundred thirty million, three hundred seventy thousand, four hundred fifteen".