746322309 has 16 divisors (see below), whose sum is σ = 1126526400. Its totient is φ = 488159568.

The previous prime is 746322307. The next prime is 746322323. The reversal of 746322309 is 903223647.

It is a happy number.

It is not a de Polignac number, because 746322309 - 2¹ = 746322307 is a prime.

It is a super-2 number, since 2×746322309² = 1113993977822182962, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746322307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259339 + ... + 262200.

It is an arithmetic number, because the mean of its divisors is an integer number (70407900).

Almost surely, 2^746322309 is an apocalyptic number.

It is an amenable number.

746322309 is a deficient number, since it is larger than the sum of its proper divisors (380204091).

746322309 is a wasteful number, since it uses less digits than its factorization.

746322309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521601 (or 521595 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 746322309 is about 27318.9002157847. The cubic root of 746322309 is about 907.0727939381.

The spelling of 746322309 in words is "seven hundred forty-six million, three hundred twenty-two thousand, three hundred nine".