78303044 has 6 divisors (see below), whose sum is σ = 137030334. Its totient is φ = 39151520.

The previous prime is 78303041. The next prime is 78303059. The reversal of 78303044 is 44030387.

It can be written as a sum of positive squares in only one way, i.e., 56100100 + 22202944 = 7490^2 + 4712^2 .

It is a super-2 number, since 2×78303044² = 12262733399331872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78302998 and 78303016.

It is not an unprimeable number, because it can be changed into a prime (78303041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9787877 + ... + 9787884.

It is an arithmetic number, because the mean of its divisors is an integer number (22838389).

Almost surely, 2^78303044 is an apocalyptic number.

It is an amenable number.

78303044 is a deficient number, since it is larger than the sum of its proper divisors (58727290).

78303044 is a wasteful number, since it uses less digits than its factorization.

78303044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19575765 (or 19575763 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 78303044 is about 8848.9007226887. The cubic root of 78303044 is about 427.8184879730.

The spelling of 78303044 in words is "seventy-eight million, three hundred three thousand, forty-four".