749185932040 has 128 divisors (see below), whose sum is σ = 2075572719360. Its totient is φ = 237001688064.

The previous prime is 749185932017. The next prime is 749185932049. The reversal of 749185932040 is 40239581947.

It is a super-2 number, since 2×749185932040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (749185932049) 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, 8535819 + ... + 8623141.

It is an arithmetic number, because the mean of its divisors is an integer number (16215411870).

Almost surely, 2^749185932040 is an apocalyptic number.

749185932040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749185932040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037786359680).

749185932040 is an abundant number, since it is smaller than the sum of its proper divisors (1326386787320).

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

749185932040 is a wasteful number, since it uses less digits than its factorization.

749185932040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89711 (or 89707 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 749185932040 in words is "seven hundred forty-nine billion, one hundred eighty-five million, nine hundred thirty-two thousand, forty".