64603140 has 48 divisors (see below), whose sum is σ = 206731392. Its totient is φ = 14766336.

The previous prime is 64603109. The next prime is 64603151. The reversal of 64603140 is 4130646.

It is a self number, because there is not a number n which added to its sum of digits gives 64603140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76489 + ... + 77328.

It is an arithmetic number, because the mean of its divisors is an integer number (4306904).

Almost surely, 2^64603140 is an apocalyptic number.

64603140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64603140 is an abundant number, since it is smaller than the sum of its proper divisors (142128252).

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

64603140 is a wasteful number, since it uses less digits than its factorization.

64603140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153836 (or 153834 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 64603140 is about 8037.6078530866. The cubic root of 64603140 is about 401.2526149615.

Adding to 64603140 its reverse (4130646), we get a palindrome (68733786).

The spelling of 64603140 in words is "sixty-four million, six hundred three thousand, one hundred forty".