1897260216 has 32 divisors (see below), whose sum is σ = 4758132240. Its totient is φ = 630422528.

The previous prime is 1897260203. The next prime is 1897260241. The reversal of 1897260216 is 6120627981.

It is a congruent number.

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, 117081 + ... + 132296.

Almost surely, 2^1897260216 is an apocalyptic number.

It is an amenable number.

1897260216 is an abundant number, since it is smaller than the sum of its proper divisors (2860872024).

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

1897260216 is a wasteful number, since it uses less digits than its factorization.

1897260216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249703 (or 249699 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1897260216 is about 43557.5506198409. The cubic root of 1897260216 is about 1237.9667110963.

The spelling of 1897260216 in words is "one billion, eight hundred ninety-seven million, two hundred sixty thousand, two hundred sixteen".