78241276 has 24 divisors (see below), whose sum is σ = 148067136. Its totient is φ = 36034560.

The previous prime is 78241253. The next prime is 78241279. The reversal of 78241276 is 67214287.

78241276 = T₄₀₄ + T₄₀₅ + ... + T₈₁₁.

It is a super-2 number, since 2×78241276² = 12243394540216352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78241279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9045 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (6169464).

Almost surely, 2^78241276 is an apocalyptic number.

It is an amenable number.

78241276 is a deficient number, since it is larger than the sum of its proper divisors (69825860).

78241276 is a wasteful number, since it uses less digits than its factorization.

78241276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24549 (or 24547 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 78241276 is about 8845.4098830976. The cubic root of 78241276 is about 427.7059659794.

The spelling of 78241276 in words is "seventy-eight million, two hundred forty-one thousand, two hundred seventy-six".