745934940 has 96 divisors (see below), whose sum is σ = 2324770560. Its totient is φ = 198566208.

The previous prime is 745934887. The next prime is 745934941. The reversal of 745934940 is 49439547.

It is a happy number.

745934940 is a `hidden beast` number, since 74 + 5 + 93 + 494 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745934941) 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 31 ways as a sum of consecutive naturals, for example, 489019 + ... + 490541.

It is an arithmetic number, because the mean of its divisors is an integer number (24216360).

Almost surely, 2^745934940 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 745934940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162385280).

745934940 is an abundant number, since it is smaller than the sum of its proper divisors (1578835620).

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

745934940 is a wasteful number, since it uses less digits than its factorization.

745934940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 745934940 is about 27311.8095336065. The cubic root of 745934940 is about 906.9158319544.

The spelling of 745934940 in words is "seven hundred forty-five million, nine hundred thirty-four thousand, nine hundred forty".