70248940 has 48 divisors (see below), whose sum is σ = 154173600. Its totient is φ = 26860032.

The previous prime is 70248931. The next prime is 70248943. The reversal of 70248940 is 4984207.

It is a happy number.

It is a super-2 number, since 2×70248940² = 9869827142247200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70248896 and 70248905.

It is not an unprimeable number, because it can be changed into a prime (70248943) 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, 42856 + ... + 44464.

It is an arithmetic number, because the mean of its divisors is an integer number (3211950).

Almost surely, 2^70248940 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 70248940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77086800).

70248940 is an abundant number, since it is smaller than the sum of its proper divisors (83924660).

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

70248940 is a wasteful number, since it uses less digits than its factorization.

70248940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 70248940 is about 8381.4640725830. The cubic root of 70248940 is about 412.6165009170.

The spelling of 70248940 in words is "seventy million, two hundred forty-eight thousand, nine hundred forty".