64349428 has 96 divisors (see below), whose sum is σ = 144506880. Its totient is φ = 24624000.

The previous prime is 64349393. The next prime is 64349431. The reversal of 64349428 is 82494346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336813 + ... + 337003.

It is an arithmetic number, because the mean of its divisors is an integer number (1505280).

Almost surely, 2^64349428 is an apocalyptic number.

It is an amenable number.

64349428 is an abundant number, since it is smaller than the sum of its proper divisors (80157452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64349428 is a wasteful number, since it uses less digits than its factorization.

64349428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 64349428 is about 8021.8095215481. The cubic root of 64349428 is about 400.7266541351.

It can be divided in two parts, 6 and 4349428, that added together give a palindrome (4349434).

The spelling of 64349428 in words is "sixty-four million, three hundred forty-nine thousand, four hundred twenty-eight".