746532720 has 160 divisors (see below), whose sum is σ = 2641170240. Its totient is φ = 193674240.

The previous prime is 746532707. The next prime is 746532727. The reversal of 746532720 is 27235647.

It is a happy number.

It is a super-2 number, since 2×746532720² = 1114622204061196800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746532727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75250 + ... + 84590.

It is an arithmetic number, because the mean of its divisors is an integer number (16507314).

Almost surely, 2^746532720 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 746532720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320585120).

746532720 is an abundant number, since it is smaller than the sum of its proper divisors (1894637520).

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

746532720 is a wasteful number, since it uses less digits than its factorization.

746532720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9400 (or 9388 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 746532720 is about 27322.7509595941. The cubic root of 746532720 is about 907.1580297484.

The spelling of 746532720 in words is "seven hundred forty-six million, five hundred thirty-two thousand, seven hundred twenty".