19990348 has 12 divisors (see below), whose sum is σ = 39980752. Its totient is φ = 8567280.

The previous prime is 19990307. The next prime is 19990349. The reversal of 19990348 is 84309991.

19990348 is an admirable number.

It is a super-2 number, since 2×19990348² = 799228026322208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19990349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356943 + ... + 356998.

Almost surely, 2^19990348 is an apocalyptic number.

It is an amenable number.

19990348 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19990348 is a wasteful number, since it uses less digits than its factorization.

19990348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713952 (or 713950 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 19990348 is about 4471.0566983656. The cubic root of 19990348 is about 271.3980887018.

The spelling of 19990348 in words is "nineteen million, nine hundred ninety thousand, three hundred forty-eight".