7450665040 has 160 divisors (see below), whose sum is σ = 21817103616. Its totient is φ = 2303078400.

The previous prime is 7450664941. The next prime is 7450665043. The reversal of 7450665040 is 405660547.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7450665043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301140 + ... + 324940.

Almost surely, 2^7450665040 is an apocalyptic number.

7450665040 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 7450665040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10908551808).

7450665040 is an abundant number, since it is smaller than the sum of its proper divisors (14366438576).

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

7450665040 is a wasteful number, since it uses less digits than its factorization.

7450665040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877 (or 23871 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 7450665040 is about 86317.2348954715. The cubic root of 7450665040 is about 1953.1323787207.

The spelling of 7450665040 in words is "seven billion, four hundred fifty million, six hundred sixty-five thousand, forty".