78419044 has 24 divisors (see below), whose sum is σ = 149940000. Its totient is φ = 35590080.

The previous prime is 78419039. The next prime is 78419059. The reversal of 78419044 is 44091487.

It is a super-2 number, since 2×78419044² = 12299092923747872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78418994 and 78419012.

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 7 ways as a sum of consecutive naturals, for example, 45307 + ... + 47005.

It is an arithmetic number, because the mean of its divisors is an integer number (6247500).

Almost surely, 2^78419044 is an apocalyptic number.

It is an amenable number.

78419044 is a deficient number, since it is larger than the sum of its proper divisors (71520956).

78419044 is a wasteful number, since it uses less digits than its factorization.

78419044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 78419044 is about 8855.4527834549. The cubic root of 78419044 is about 428.0296439129.

It can be divided in two parts, 784 and 19044, that multiplied together give a square (14930496 = 3864²).

The spelling of 78419044 in words is "seventy-eight million, four hundred nineteen thousand, forty-four".