67520460 has 96 divisors (see below), whose sum is σ = 217147392. Its totient is φ = 15356160.

The previous prime is 67520443. The next prime is 67520477. The reversal of 67520460 is 6402576.

It is an interprime number because it is at equal distance from previous prime (67520443) and next prime (67520477).

It is a super-2 number, since 2×67520460² = 9118025037223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 156445 + ... + 156875.

It is an arithmetic number, because the mean of its divisors is an integer number (2261952).

Almost surely, 2^67520460 is an apocalyptic number.

67520460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67520460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108573696).

67520460 is an abundant number, since it is smaller than the sum of its proper divisors (149626932).

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

67520460 is a wasteful number, since it uses less digits than its factorization.

67520460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 67520460 is about 8217.0834241840. The cubic root of 67520460 is about 407.2037768404.

The spelling of 67520460 in words is "sixty-seven million, five hundred twenty thousand, four hundred sixty".