67480740 has 36 divisors (see below), whose sum is σ = 204692124. Its totient is φ = 17994816.

The previous prime is 67480733. The next prime is 67480757. The reversal of 67480740 is 4708476.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27941796 + 39538944 = 5286^2 + 6288^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 67480695 and 67480704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187267 + ... + 187626.

Almost surely, 2^67480740 is an apocalyptic number.

67480740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67480740 is an abundant number, since it is smaller than the sum of its proper divisors (137211384).

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

67480740 is a wasteful number, since it uses less digits than its factorization.

67480740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374908 (or 374903 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 67480740 is about 8214.6661526808. Note that the first 3 decimals coincide. The cubic root of 67480740 is about 407.1239131141.

The spelling of 67480740 in words is "sixty-seven million, four hundred eighty thousand, seven hundred forty".