77044442 has 32 divisors (see below), whose sum is σ = 125712000. Its totient is φ = 35278848.

The previous prime is 77044441. The next prime is 77044483. The reversal of 77044442 is 24444077.

It is a junction number, because it is equal to n+sod(n) for n = 77044399 and 77044408.

It is not an unprimeable number, because it can be changed into a prime (77044441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387059 + ... + 387257.

It is an arithmetic number, because the mean of its divisors is an integer number (3928500).

Almost surely, 2^77044442 is an apocalyptic number.

77044442 is a deficient number, since it is larger than the sum of its proper divisors (48667558).

77044442 is a wasteful number, since it uses less digits than its factorization.

77044442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 77044442 is about 8777.4963400733. The cubic root of 77044442 is about 425.5139194831.

The spelling of 77044442 in words is "seventy-seven million, forty-four thousand, four hundred forty-two".