19472212 has 24 divisors (see below), whose sum is σ = 35862120. Its totient is φ = 9239040.

The previous prime is 19472209. The next prime is 19472231. The reversal of 19472212 is 21227491.

19472212 = T₄₀₃ + T₄₀₄ + ... + T₅₆₆.

It can be written as a sum of positive squares in 4 ways, for example, as 2547216 + 16924996 = 1596^2 + 4114^2 .

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, 4464 + ... + 7672.

It is an arithmetic number, because the mean of its divisors is an integer number (1494255).

Almost surely, 2^19472212 is an apocalyptic number.

It is an amenable number.

19472212 is a deficient number, since it is larger than the sum of its proper divisors (16389908).

19472212 is a wasteful number, since it uses less digits than its factorization.

19472212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291 (or 3289 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 19472212 is about 4412.7329400271. The cubic root of 19472212 is about 269.0327162246.

The spelling of 19472212 in words is "nineteen million, four hundred seventy-two thousand, two hundred twelve".