20229476 has 6 divisors (see below), whose sum is σ = 35401590. Its totient is φ = 10114736.

The previous prime is 20229467. The next prime is 20229481. The reversal of 20229476 is 67492202.

It can be written as a sum of positive squares in only one way, i.e., 19589476 + 640000 = 4426^2 + 800^2 .

It is a super-6 number, since 6×20229476⁶ (a number of 45 digits) contains 666666 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2528681 + ... + 2528688.

It is an arithmetic number, because the mean of its divisors is an integer number (5900265).

Almost surely, 2^20229476 is an apocalyptic number.

It is an amenable number.

20229476 is a deficient number, since it is larger than the sum of its proper divisors (15172114).

20229476 is a wasteful number, since it uses less digits than its factorization.

20229476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057373 (or 5057371 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20229476 is about 4497.7189774373. The cubic root of 20229476 is about 272.4759724066.

The spelling of 20229476 in words is "twenty million, two hundred twenty-nine thousand, four hundred seventy-six".