745630140 has 24 divisors (see below), whose sum is σ = 2087764560. Its totient is φ = 198834688.

The previous prime is 745630133. The next prime is 745630147. The reversal of 745630140 is 41036547.

It is an interprime number because it is at equal distance from previous prime (745630133) and next prime (745630147).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 745630098 and 745630107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745630147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6213525 + ... + 6213644.

It is an arithmetic number, because the mean of its divisors is an integer number (86990190).

Almost surely, 2^745630140 is an apocalyptic number.

It is an amenable number.

745630140 is an abundant number, since it is smaller than the sum of its proper divisors (1342134420).

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

745630140 is a wasteful number, since it uses less digits than its factorization.

745630140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427181 (or 12427179 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 745630140 is about 27306.2289597081. The cubic root of 745630140 is about 906.7922887381.

Adding to 745630140 its reverse (41036547), we get a palindrome (786666687).

The spelling of 745630140 in words is "seven hundred forty-five million, six hundred thirty thousand, one hundred forty".