19902114 has 24 divisors (see below), whose sum is σ = 43203420. Its totient is φ = 6621408.

The previous prime is 19902109. The next prime is 19902119. The reversal of 19902114 is 41120991.

It is an interprime number because it is at equal distance from previous prime (19902109) and next prime (19902119).

It can be written as a sum of positive squares in 2 ways, for example, as 19580625 + 321489 = 4425^2 + 567^2 .

It is not an unprimeable number, because it can be changed into a prime (19902119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17392 + ... + 18500.

Almost surely, 2^19902114 is an apocalyptic number.

19902114 is an abundant number, since it is smaller than the sum of its proper divisors (23301306).

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

19902114 is a wasteful number, since it uses less digits than its factorization.

19902114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114 (or 2111 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19902114 is about 4461.1785438379. The cubic root of 19902114 is about 270.9981980881.

The spelling of 19902114 in words is "nineteen million, nine hundred two thousand, one hundred fourteen".