64100730 has 32 divisors (see below), whose sum is σ = 159148800. Its totient is φ = 16503872.

The previous prime is 64100723. The next prime is 64100731. The reversal of 64100730 is 3700146.

It is a junction number, because it is equal to n+sod(n) for n = 64100697 and 64100706.

It is not an unprimeable number, because it can be changed into a prime (64100731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35970 + ... + 37709.

It is an arithmetic number, because the mean of its divisors is an integer number (4973400).

Almost surely, 2^64100730 is an apocalyptic number.

64100730 is an abundant number, since it is smaller than the sum of its proper divisors (95048070).

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

64100730 is a wasteful number, since it uses less digits than its factorization.

64100730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73718.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 64100730 is about 8006.2931497666. The cubic root of 64100730 is about 400.2097441659.

Adding to 64100730 its reverse (3700146), we get a palindrome (67800876).

The spelling of 64100730 in words is "sixty-four million, one hundred thousand, seven hundred thirty".