472640428 has 48 divisors (see below), whose sum is σ = 942172000. Its totient is φ = 205659648.

The previous prime is 472640423. The next prime is 472640431. The reversal of 472640428 is 824046274.

It is not an unprimeable number, because it can be changed into a prime (472640423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225208 + ... + 227296.

Almost surely, 2^472640428 is an apocalyptic number.

It is an amenable number.

472640428 is a deficient number, since it is larger than the sum of its proper divisors (469531572).

472640428 is a wasteful number, since it uses less digits than its factorization.

472640428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 37.

The square root of 472640428 is about 21740.2950301968. The cubic root of 472640428 is about 778.9512686466.

It can be divided in two parts, 4726 and 40428, that added together give a palindrome (45154).

The spelling of 472640428 in words is "four hundred seventy-two million, six hundred forty thousand, four hundred twenty-eight".