73428274 has 32 divisors (see below), whose sum is σ = 121282560. Its totient is φ = 33210000.

The previous prime is 73428269. The next prime is 73428283. The reversal of 73428274 is 47282437.

It is a super-2 number, since 2×73428274² = 10783422845238152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97399 + ... + 98149.

It is an arithmetic number, because the mean of its divisors is an integer number (3790080).

Almost surely, 2^73428274 is an apocalyptic number.

73428274 is a deficient number, since it is larger than the sum of its proper divisors (47854286).

73428274 is a wasteful number, since it uses less digits than its factorization.

73428274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its digits is 75264, while the sum is 37.

The square root of 73428274 is about 8569.0299334289. The cubic root of 73428274 is about 418.7496335038.

The spelling of 73428274 in words is "seventy-three million, four hundred twenty-eight thousand, two hundred seventy-four".