425329639 has 8 divisors (see below), whose sum is σ = 507225600. Its totient is φ = 348717336.

The previous prime is 425329633. The next prime is 425329651. The reversal of 425329639 is 936923524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425329639 - 2¹³ = 425321447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425329595 and 425329604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425329633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320739 + ... + 1321060.

It is an arithmetic number, because the mean of its divisors is an integer number (63403200).

Almost surely, 2^425329639 is an apocalyptic number.

425329639 is a deficient number, since it is larger than the sum of its proper divisors (81895961).

425329639 is a wasteful number, since it uses less digits than its factorization.

425329639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641829.

The product of its digits is 349920, while the sum is 43.

The square root of 425329639 is about 20623.5214985220. The cubic root of 425329639 is about 752.0416307636.

The spelling of 425329639 in words is "four hundred twenty-five million, three hundred twenty-nine thousand, six hundred thirty-nine".