67061280 has 192 divisors, whose sum is σ = 248427648. Its totient is φ = 14991360.

The previous prime is 67061263. The next prime is 67061299. The reversal of 67061280 is 8216076.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68152 + ... + 69128.

It is an arithmetic number, because the mean of its divisors is an integer number (1293894).

Almost surely, 2^67061280 is an apocalyptic number.

67061280 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 67061280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124213824).

67061280 is an abundant number, since it is smaller than the sum of its proper divisors (181366368).

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

67061280 is a wasteful number, since it uses less digits than its factorization.

67061280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 67061280 is about 8189.0951881145. The cubic root of 67061280 is about 406.2785990123.

The spelling of 67061280 in words is "sixty-seven million, sixty-one thousand, two hundred eighty".