78041372 has 6 divisors (see below), whose sum is σ = 136572408. Its totient is φ = 39020684.

The previous prime is 78041357. The next prime is 78041377. The reversal of 78041372 is 27314087.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78041377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9755168 + ... + 9755175.

It is an arithmetic number, because the mean of its divisors is an integer number (22762068).

Almost surely, 2^78041372 is an apocalyptic number.

It is an amenable number.

78041372 is a deficient number, since it is larger than the sum of its proper divisors (58531036).

78041372 is a wasteful number, since it uses less digits than its factorization.

78041372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19510347 (or 19510345 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 78041372 is about 8834.1027840975. The cubic root of 78041372 is about 427.3413968839.

The spelling of 78041372 in words is "seventy-eight million, forty-one thousand, three hundred seventy-two".