7453421040 has 160 divisors (see below), whose sum is σ = 25051521600. Its totient is φ = 1822261248.

The previous prime is 7453421029. The next prime is 7453421113. The reversal of 7453421040 is 401243547.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 7453420989 and 7453421007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456864 + ... + 472896.

It is an arithmetic number, because the mean of its divisors is an integer number (156572010).

Almost surely, 2^7453421040 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 7453421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12525760800).

7453421040 is an abundant number, since it is smaller than the sum of its proper divisors (17598100560).

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

7453421040 is a wasteful number, since it uses less digits than its factorization.

7453421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16211 (or 16205 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 7453421040 is about 86333.1977862514. The cubic root of 7453421040 is about 1953.3731701686.

Adding to 7453421040 its reverse (401243547), we get a palindrome (7854664587).

The spelling of 7453421040 in words is "seven billion, four hundred fifty-three million, four hundred twenty-one thousand, forty".