1900649049 has 8 divisors (see below), whose sum is σ = 2729137152. Its totient is φ = 1169630160.

The previous prime is 1900648979. The next prime is 1900649077. The reversal of 1900649049 is 9409460091.

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

It is not a de Polignac number, because 1900649049 - 2⁷ = 1900648921 is a prime.

It is a super-2 number, since 2×1900649049² = 7224933614929208802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1900649049.

It is not an unprimeable number, because it can be changed into a prime (1900649089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24367257 + ... + 24367334.

It is an arithmetic number, because the mean of its divisors is an integer number (341142144).

Almost surely, 2^1900649049 is an apocalyptic number.

It is an amenable number.

1900649049 is a deficient number, since it is larger than the sum of its proper divisors (828488103).

1900649049 is a wasteful number, since it uses less digits than its factorization.

1900649049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48734607.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1900649049 is about 43596.4339023274. The cubic root of 1900649049 is about 1238.7033464936.

The spelling of 1900649049 in words is "one billion, nine hundred million, six hundred forty-nine thousand, forty-nine".