1900534272 has 160 divisors (see below), whose sum is σ = 6232017792. Its totient is φ = 501202944.

The previous prime is 1900534243. The next prime is 1900534277. The reversal of 1900534272 is 2724350091.

It is a super-2 number, since 2×1900534272² = 7224061038093139968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900534277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132978 + ... + 146574.

Almost surely, 2^1900534272 is an apocalyptic number.

1900534272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1900534272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3116008896).

1900534272 is an abundant number, since it is smaller than the sum of its proper divisors (4331483520).

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

1900534272 is a wasteful number, since it uses less digits than its factorization.

1900534272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13638 (or 13622 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1900534272 is about 43595.1175247871. The cubic root of 1900534272 is about 1238.6784115876.

The spelling of 1900534272 in words is "one billion, nine hundred million, five hundred thirty-four thousand, two hundred seventy-two".