64842510 has 16 divisors (see below), whose sum is σ = 155622096. Its totient is φ = 17291328.

The previous prime is 64842509. The next prime is 64842523. The reversal of 64842510 is 1524846.

It is a super-2 number, since 2×64842510² = 8409102206200200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2161417 = 64842510 / (6 + 4 + 8 + 4 + 2 + 5 + 1 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080679 + ... + 1080738.

It is an arithmetic number, because the mean of its divisors is an integer number (9726381).

Almost surely, 2^64842510 is an apocalyptic number.

64842510 is an abundant number, since it is smaller than the sum of its proper divisors (90779586).

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

64842510 is a wasteful number, since it uses less digits than its factorization.

64842510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161427.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 64842510 is about 8052.4847097030. The cubic root of 64842510 is about 401.7475829322.

The spelling of 64842510 in words is "sixty-four million, eight hundred forty-two thousand, five hundred ten".