746591538 has 144 divisors (see below), whose sum is σ = 1973728512. Its totient is φ = 187387200.

The previous prime is 746591479. The next prime is 746591539. The reversal of 746591538 is 835195647.

It is a super-2 number, since 2×746591538² = 1114797849226410888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746591539) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1102456 + ... + 1103132.

It is an arithmetic number, because the mean of its divisors is an integer number (13706448).

Almost surely, 2^746591538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 746591538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986864256).

746591538 is an abundant number, since it is smaller than the sum of its proper divisors (1227136974).

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

746591538 is a wasteful number, since it uses less digits than its factorization.

746591538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 731 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 746591538 is about 27323.8272941402. The cubic root of 746591538 is about 907.1818535846.

The spelling of 746591538 in words is "seven hundred forty-six million, five hundred ninety-one thousand, five hundred thirty-eight".