64426430 has 32 divisors (see below), whose sum is σ = 124086816. Its totient is φ = 23998464.

The previous prime is 64426423. The next prime is 64426441. The reversal of 64426430 is 3462446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64426393 and 64426402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14537 + ... + 18443.

It is an arithmetic number, because the mean of its divisors is an integer number (3877713).

Almost surely, 2^64426430 is an apocalyptic number.

64426430 is a deficient number, since it is larger than the sum of its proper divisors (59660386).

64426430 is a wasteful number, since it uses less digits than its factorization.

64426430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 64426430 is about 8026.6076271361. The cubic root of 64426430 is about 400.8864299869.

Adding to 64426430 its reverse (3462446), we get a palindrome (67888876).

The spelling of 64426430 in words is "sixty-four million, four hundred twenty-six thousand, four hundred thirty".