1906090272 has 48 divisors (see below), whose sum is σ = 5559432480. Its totient is φ = 635363136.

The previous prime is 1906090267. The next prime is 1906090289. The reversal of 1906090272 is 2720906091.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102198 + ... + 1103925.

It is an arithmetic number, because the mean of its divisors is an integer number (115821510).

Almost surely, 2^1906090272 is an apocalyptic number.

1906090272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1906090272 is an abundant number, since it is smaller than the sum of its proper divisors (3653342208).

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

1906090272 is a wasteful number, since it uses less digits than its factorization.

1906090272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206142 (or 2206128 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1906090272 is about 43658.7937533780. The cubic root of 1906090272 is about 1239.8842833397.

The spelling of 1906090272 in words is "one billion, nine hundred six million, ninety thousand, two hundred seventy-two".