425632384 has 16 divisors (see below), whose sum is σ = 847939770. Its totient is φ = 212816128.

The previous prime is 425632381. The next prime is 425632397. The reversal of 425632384 is 483236524.

It can be written as a sum of positive squares in only one way, i.e., 424360000 + 1272384 = 20600^2 + 1128^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (425632381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1662499 + ... + 1662754.

Almost surely, 2^425632384 is an apocalyptic number.

It is an amenable number.

425632384 is a deficient number, since it is larger than the sum of its proper divisors (422307386).

425632384 is an equidigital number, since it uses as much as digits as its factorization.

425632384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325267 (or 3325255 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 425632384 is about 20630.8599917696. The cubic root of 425632384 is about 752.2200201230.

The spelling of 425632384 in words is "four hundred twenty-five million, six hundred thirty-two thousand, three hundred eighty-four".