745825820 has 12 divisors (see below), whose sum is σ = 1566234264. Its totient is φ = 298330320.

The previous prime is 745825783. The next prime is 745825823. The reversal of 745825820 is 28528547.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745825823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18645626 + ... + 18645665.

It is an arithmetic number, because the mean of its divisors is an integer number (130519522).

Almost surely, 2^745825820 is an apocalyptic number.

It is an amenable number.

745825820 is an abundant number, since it is smaller than the sum of its proper divisors (820408444).

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

745825820 is a wasteful number, since it uses less digits than its factorization.

745825820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37291300 (or 37291298 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 745825820 is about 27309.8117899044. The cubic root of 745825820 is about 906.8716067026.

The spelling of 745825820 in words is "seven hundred forty-five million, eight hundred twenty-five thousand, eight hundred twenty".