7421355372 has 96 divisors (see below), whose sum is σ = 18665095680. Its totient is φ = 2286627840.

The previous prime is 7421355259. The next prime is 7421355373. The reversal of 7421355372 is 2735531247.

It is a self number, because there is not a number n which added to its sum of digits gives 7421355372.

It is not an unprimeable number, because it can be changed into a prime (7421355373) 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, 4445754 + ... + 4447422.

It is an arithmetic number, because the mean of its divisors is an integer number (194428080).

Almost surely, 2^7421355372 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 7421355372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9332547840).

7421355372 is an abundant number, since it is smaller than the sum of its proper divisors (11243740308).

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

7421355372 is a wasteful number, since it uses less digits than its factorization.

7421355372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2069 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The square root of 7421355372 is about 86147.2888255922. The cubic root of 7421355372 is about 1950.5679145329.

The spelling of 7421355372 in words is "seven billion, four hundred twenty-one million, three hundred fifty-five thousand, three hundred seventy-two".