745631022 has 16 divisors (see below), whose sum is σ = 1569749760. Its totient is φ = 235462392.

The previous prime is 745631021. The next prime is 745631023. The reversal of 745631022 is 220136547.

It is an interprime number because it is at equal distance from previous prime (745631021) and next prime (745631023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745631021) 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, 3270198 + ... + 3270425.

It is an arithmetic number, because the mean of its divisors is an integer number (98109360).

Almost surely, 2^745631022 is an apocalyptic number.

745631022 is an abundant number, since it is smaller than the sum of its proper divisors (824118738).

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

745631022 is a wasteful number, since it uses less digits than its factorization.

745631022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540647.

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

The square root of 745631022 is about 27306.2451098645. The cubic root of 745631022 is about 906.7926462837.

Adding to 745631022 its reverse (220136547), we get a palindrome (965767569).

The spelling of 745631022 in words is "seven hundred forty-five million, six hundred thirty-one thousand, twenty-two".