745068820 has 24 divisors (see below), whose sum is σ = 1579271904. Its totient is φ = 295241376.

The previous prime is 745068803. The next prime is 745068887. The reversal of 745068820 is 28860547.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 171942 + ... + 176221.

It is an arithmetic number, because the mean of its divisors is an integer number (65802996).

Almost surely, 2^745068820 is an apocalyptic number.

It is an amenable number.

745068820 is an abundant number, since it is smaller than the sum of its proper divisors (834203084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745068820 is a wasteful number, since it uses less digits than its factorization.

745068820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348279 (or 348277 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 745068820 is about 27295.9487836565. The cubic root of 745068820 is about 906.5646832980.

The spelling of 745068820 in words is "seven hundred forty-five million, sixty-eight thousand, eight hundred twenty".