67748940 has 96 divisors (see below), whose sum is σ = 240898560. Its totient is φ = 15484608.

The previous prime is 67748929. The next prime is 67748977. The reversal of 67748940 is 4984776.

It is a super-2 number, since 2×67748940² = 9179837742247200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 5182 + ... + 12741.

It is an arithmetic number, because the mean of its divisors is an integer number (2509360).

Almost surely, 2^67748940 is an apocalyptic number.

67748940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67748940 is an abundant number, since it is smaller than the sum of its proper divisors (173149620).

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

67748940 is a wasteful number, since it uses less digits than its factorization.

67748940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948 (or 17940 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 67748940 is about 8230.9744259109. The cubic root of 67748940 is about 407.6625670266.

The spelling of 67748940 in words is "sixty-seven million, seven hundred forty-eight thousand, nine hundred forty".