20150349280 has 24 divisors (see below), whose sum is σ = 47605200552. Its totient is φ = 8060139648.

The previous prime is 20150349259. The next prime is 20150349287. The reversal of 20150349280 is 8294305102.

It is a super-2 number, since 2×20150349280² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150349287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62969682 + ... + 62970001.

It is an arithmetic number, because the mean of its divisors is an integer number (1983550023).

Almost surely, 2^20150349280 is an apocalyptic number.

20150349280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20150349280 is an abundant number, since it is smaller than the sum of its proper divisors (27454851272).

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

20150349280 is a wasteful number, since it uses less digits than its factorization.

20150349280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125939698 (or 125939690 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 20150349280 in words is "twenty billion, one hundred fifty million, three hundred forty-nine thousand, two hundred eighty".