77424238 has 8 divisors (see below), whose sum is σ = 117727488. Its totient is φ = 38181744.

The previous prime is 77424227. The next prime is 77424253. The reversal of 77424238 is 83242477.

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

It is a junction number, because it is equal to n+sod(n) for n = 77424197 and 77424206.

It is a congruent number.

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, 265006 + ... + 265297.

It is an arithmetic number, because the mean of its divisors is an integer number (14715936).

Almost surely, 2^77424238 is an apocalyptic number.

77424238 is a deficient number, since it is larger than the sum of its proper divisors (40303250).

77424238 is a wasteful number, since it uses less digits than its factorization.

77424238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530378.

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

The square root of 77424238 is about 8799.1043862430. The cubic root of 77424238 is about 426.2119739730.

The spelling of 77424238 in words is "seventy-seven million, four hundred twenty-four thousand, two hundred thirty-eight".