70426540 has 48 divisors (see below), whose sum is σ = 159919200. Its totient is φ = 25961472.

The previous prime is 70426511. The next prime is 70426549. The reversal of 70426540 is 4562407.

It is a junction number, because it is equal to n+sod(n) for n = 70426499 and 70426508.

It is not an unprimeable number, because it can be changed into a prime (70426549) 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, 11556 + ... + 16564.

It is an arithmetic number, because the mean of its divisors is an integer number (3331650).

Almost surely, 2^70426540 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 70426540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79959600).

70426540 is an abundant number, since it is smaller than the sum of its proper divisors (89492660).

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

70426540 is a wasteful number, since it uses less digits than its factorization.

70426540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074 (or 5072 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 70426540 is about 8392.0521924020. The cubic root of 70426540 is about 412.9639273800.

Adding to 70426540 its reverse (4562407), we get a palindrome (74988947).

The spelling of 70426540 in words is "seventy million, four hundred twenty-six thousand, five hundred forty".