745291900 has 72 divisors (see below), whose sum is σ = 1740732336. Its totient is φ = 275942400.

The previous prime is 745291889. The next prime is 745291901. The reversal of 745291900 is 9192547.

It is a super-2 number, since 2×745291900² = 1110920032411220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 745291900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745291901) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 100107 + ... + 107293.

It is an arithmetic number, because the mean of its divisors is an integer number (24176838).

Almost surely, 2^745291900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745291900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870366168).

745291900 is an abundant number, since it is smaller than the sum of its proper divisors (995440436).

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

745291900 is a wasteful number, since it uses less digits than its factorization.

745291900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279 (or 7272 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 745291900 is about 27300.0347985126. The cubic root of 745291900 is about 906.6551520188.

The spelling of 745291900 in words is "seven hundred forty-five million, two hundred ninety-one thousand, nine hundred".