20694148 has 6 divisors (see below), whose sum is σ = 36214766. Its totient is φ = 10347072.

The previous prime is 20694131. The next prime is 20694161. The reversal of 20694148 is 84149602.

It can be written as a sum of positive squares in only one way, i.e., 16499844 + 4194304 = 4062^2 + 2048^2 .

It is a super-2 number, since 2×20694148² = 856495522891808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2586765 + ... + 2586772.

Almost surely, 2^20694148 is an apocalyptic number.

It is an amenable number.

20694148 is a deficient number, since it is larger than the sum of its proper divisors (15520618).

20694148 is a wasteful number, since it uses less digits than its factorization.

20694148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173541 (or 5173539 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 20694148 is about 4549.0821052164. The cubic root of 20694148 is about 274.5464612360.

The spelling of 20694148 in words is "twenty million, six hundred ninety-four thousand, one hundred forty-eight".