77396442 has 16 divisors (see below), whose sum is σ = 154913472. Its totient is φ = 25778720.

The previous prime is 77396419. The next prime is 77396453. The reversal of 77396442 is 24469377.

It is a junction number, because it is equal to n+sod(n) for n = 77396394 and 77396403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 13334.

It is an arithmetic number, because the mean of its divisors is an integer number (9682092).

Almost surely, 2^77396442 is an apocalyptic number.

77396442 is an abundant number, since it is smaller than the sum of its proper divisors (77517030).

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

77396442 is a wasteful number, since it uses less digits than its factorization.

77396442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053.

The product of its digits is 254016, while the sum is 42.

The square root of 77396442 is about 8797.5247655235. The cubic root of 77396442 is about 426.1609632200.

The spelling of 77396442 in words is "seventy-seven million, three hundred ninety-six thousand, four hundred forty-two".