73420745 has 8 divisors (see below), whose sum is σ = 89346240. Its totient is φ = 57909040.

The previous prime is 73420729. The next prime is 73420751. The reversal of 73420745 is 54702437.

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

It is not a de Polignac number, because 73420745 - 2⁴ = 73420729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103055 + ... + 103764.

It is an arithmetic number, because the mean of its divisors is an integer number (11168280).

Almost surely, 2^73420745 is an apocalyptic number.

It is an amenable number.

73420745 is a deficient number, since it is larger than the sum of its proper divisors (15925495).

73420745 is a wasteful number, since it uses less digits than its factorization.

73420745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206895.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 73420745 is about 8568.5906075620. The cubic root of 73420745 is about 418.7353207894.

The spelling of 73420745 in words is "seventy-three million, four hundred twenty thousand, seven hundred forty-five".