1902220473 has 8 divisors (see below), whose sum is σ = 2669783200. Its totient is φ = 1201402368.

The previous prime is 1902220469. The next prime is 1902220483. The reversal of 1902220473 is 3740222091.

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

It is not a de Polignac number, because 1902220473 - 2² = 1902220469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1902220473.

It is not an unprimeable number, because it can be changed into a prime (1902220433) 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, 16686088 + ... + 16686201.

It is an arithmetic number, because the mean of its divisors is an integer number (333722900).

Almost surely, 2^1902220473 is an apocalyptic number.

It is an amenable number.

1902220473 is a deficient number, since it is larger than the sum of its proper divisors (767562727).

1902220473 is a wasteful number, since it uses less digits than its factorization.

1902220473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33372311.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1902220473 is about 43614.4525702203. The cubic root of 1902220473 is about 1239.0446320074.

The spelling of 1902220473 in words is "one billion, nine hundred two million, two hundred twenty thousand, four hundred seventy-three".