20262149430 has 16 divisors (see below), whose sum is σ = 48629158704. Its totient is φ = 5403239840.

The previous prime is 20262149419. The next prime is 20262149449. The reversal of 20262149430 is 3494126202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20262149391 and 20262149400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337702461 + ... + 337702520.

It is an arithmetic number, because the mean of its divisors is an integer number (3039322419).

Almost surely, 2^20262149430 is an apocalyptic number.

20262149430 is an abundant number, since it is smaller than the sum of its proper divisors (28367009274).

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

20262149430 is a wasteful number, since it uses less digits than its factorization.

20262149430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675404991.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 20262149430 in words is "twenty billion, two hundred sixty-two million, one hundred forty-nine thousand, four hundred thirty".