7422373440 has 280 divisors, whose sum is σ = 26537579640. Its totient is φ = 1969201152.

The previous prime is 7422373429. The next prime is 7422373457. The reversal of 7422373440 is 443732247.

It can be written as a sum of positive squares in 4 ways, for example, as 1696121856 + 5726251584 = 41184^2 + 75672^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7422373395 and 7422373404.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6038746 + ... + 6039974.

Almost surely, 2^7422373440 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 7422373440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13268789820).

7422373440 is an abundant number, since it is smaller than the sum of its proper divisors (19115206200).

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

7422373440 is a wasteful number, since it uses less digits than its factorization.

7422373440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 36.

The square root of 7422373440 is about 86153.1975030527. The cubic root of 7422373440 is about 1950.6571039904.

The spelling of 7422373440 in words is "seven billion, four hundred twenty-two million, three hundred seventy-three thousand, four hundred forty".