73780382 has 32 divisors (see below), whose sum is σ = 126191520. Its totient is φ = 32071680.

The previous prime is 73780381. The next prime is 73780387. The reversal of 73780382 is 28308737.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73780381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114782 + ... + 115422.

It is an arithmetic number, because the mean of its divisors is an integer number (3943485).

Almost surely, 2^73780382 is an apocalyptic number.

73780382 is a deficient number, since it is larger than the sum of its proper divisors (52411138).

73780382 is a wasteful number, since it uses less digits than its factorization.

73780382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 73780382 is about 8589.5507449459. The cubic root of 73780382 is about 419.4179048856.

The spelling of 73780382 in words is "seventy-three million, seven hundred eighty thousand, three hundred eighty-two".