64430534 has 8 divisors (see below), whose sum is σ = 110452368. Its totient is φ = 27613080.

The previous prime is 64430533. The next prime is 64430549. The reversal of 64430534 is 43503446.

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

It is a junction number, because it is equal to n+sod(n) for n = 64430497 and 64430506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2301077 + ... + 2301104.

It is an arithmetic number, because the mean of its divisors is an integer number (13806546).

Almost surely, 2^64430534 is an apocalyptic number.

64430534 is a deficient number, since it is larger than the sum of its proper divisors (46021834).

64430534 is a wasteful number, since it uses less digits than its factorization.

64430534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602190.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 64430534 is about 8026.8632727860. The cubic root of 64430534 is about 400.8949420369.

It can be divided in two parts, 64 and 430534, that multiplied together give a triangular number (27554176 = T₇₄₂₃).

The spelling of 64430534 in words is "sixty-four million, four hundred thirty thousand, five hundred thirty-four".