77442226 has 8 divisors (see below), whose sum is σ = 118864944. Its totient is φ = 37820580.

The previous prime is 77442139. The next prime is 77442251. The reversal of 77442226 is 62224477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×77442226³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77442191 and 77442200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450160 + ... + 450331.

It is an arithmetic number, because the mean of its divisors is an integer number (14858118).

Almost surely, 2^77442226 is an apocalyptic number.

77442226 is a deficient number, since it is larger than the sum of its proper divisors (41422718).

77442226 is a wasteful number, since it uses less digits than its factorization.

77442226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900536.

The product of its digits is 37632, while the sum is 34.

The square root of 77442226 is about 8800.1264763638. The cubic root of 77442226 is about 426.2449787422.

The spelling of 77442226 in words is "seventy-seven million, four hundred forty-two thousand, two hundred twenty-six".