20152440430 has 8 divisors (see below), whose sum is σ = 36274392792. Its totient is φ = 8060976168.

The previous prime is 20152440397. The next prime is 20152440443. The reversal of 20152440430 is 3404425102.

It is a happy number.

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

It is a super-2 number, since 2×20152440430² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20152440395 and 20152440404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007622012 + ... + 1007622031.

It is an arithmetic number, because the mean of its divisors is an integer number (4534299099).

Almost surely, 2^20152440430 is an apocalyptic number.

20152440430 is a deficient number, since it is larger than the sum of its proper divisors (16121952362).

20152440430 is a wasteful number, since it uses less digits than its factorization.

20152440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015244050.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20152440430 its reverse (3404425102), we get a palindrome (23556865532).

The spelling of 20152440430 in words is "twenty billion, one hundred fifty-two million, four hundred forty thousand, four hundred thirty".