10219988 has 24 divisors (see below), whose sum is σ = 18532584. Its totient is φ = 4928000.

The previous prime is 10219973. The next prime is 10219991. The reversal of 10219988 is 88991201.

It can be written as a sum of positive squares in 4 ways, for example, as 94864 + 10125124 = 308^2 + 3182^2 .

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, 16256 + ... + 16872.

It is an arithmetic number, because the mean of its divisors is an integer number (772191).

Almost surely, 2^10219988 is an apocalyptic number.

It is an amenable number.

10219988 is a deficient number, since it is larger than the sum of its proper divisors (8312596).

10219988 is a wasteful number, since it uses less digits than its factorization.

10219988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 10219988 is about 3196.8715957949. The cubic root of 10219988 is about 217.0118563322.

The spelling of 10219988 in words is "ten million, two hundred nineteen thousand, nine hundred eighty-eight".