64201830 has 64 divisors (see below), whose sum is σ = 192112128. Its totient is φ = 13340160.

The previous prime is 64201801. The next prime is 64201831. The reversal of 64201830 is 3810246.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 64201830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64201831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11587 + ... + 16206.

It is an arithmetic number, because the mean of its divisors is an integer number (3001752).

Almost surely, 2^64201830 is an apocalyptic number.

64201830 is an abundant number, since it is smaller than the sum of its proper divisors (127910298).

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

64201830 is a wasteful number, since it uses less digits than its factorization.

64201830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27821.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 64201830 is about 8012.6044454971. The cubic root of 64201830 is about 400.4200379326.

The spelling of 64201830 in words is "sixty-four million, two hundred one thousand, eight hundred thirty".