67450240 has 192 divisors, whose sum is σ = 193722480. Its totient is φ = 22302720.

The previous prime is 67450231. The next prime is 67450249. The reversal of 67450240 is 4205476.

67450240 = T₁₄₀₈ + T₁₄₀₉ + ... + T₁₄₇₂.

It is an interprime number because it is at equal distance from previous prime (67450231) and next prime (67450249).

It is a junction number, because it is equal to n+sod(n) for n = 67450199 and 67450208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67450249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006687 + ... + 1006753.

Almost surely, 2^67450240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96861240).

67450240 is an abundant number, since it is smaller than the sum of its proper divisors (126272240).

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

67450240 is a wasteful number, since it uses less digits than its factorization.

67450240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 67450240 is about 8212.8095071053. The cubic root of 67450240 is about 407.0625664710.

The spelling of 67450240 in words is "sixty-seven million, four hundred fifty thousand, two hundred forty".