7023657420 has 288 divisors, whose sum is σ = 25050305280. Its totient is φ = 1637625600.

The previous prime is 7023657409. The next prime is 7023657427. The reversal of 7023657420 is 247563207.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (7023657427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1197495 + ... + 1203345.

Almost surely, 2^7023657420 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 7023657420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12525152640).

7023657420 is an abundant number, since it is smaller than the sum of its proper divisors (18026647860).

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

7023657420 is a wasteful number, since it uses less digits than its factorization.

7023657420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907 (or 5893 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 7023657420 is about 83807.2635276919. The cubic root of 7023657420 is about 1915.0837603995.

The spelling of 7023657420 in words is "seven billion, twenty-three million, six hundred fifty-seven thousand, four hundred twenty".