7145923408 has 80 divisors (see below), whose sum is σ = 16236460800. Its totient is φ = 3016742400.

The previous prime is 7145923403. The next prime is 7145923441. The reversal of 7145923408 is 8043295417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145923403) 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, 83433 + ... + 145783.

It is an arithmetic number, because the mean of its divisors is an integer number (202955760).

Almost surely, 2^7145923408 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 7145923408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8118230400).

7145923408 is an abundant number, since it is smaller than the sum of its proper divisors (9090537392).

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

7145923408 is a wasteful number, since it uses less digits than its factorization.

7145923408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62420 (or 62414 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 7145923408 is about 84533.5637956901. The cubic root of 7145923408 is about 1926.1323215490.

The spelling of 7145923408 in words is "seven billion, one hundred forty-five million, nine hundred twenty-three thousand, four hundred eight".