70240020 has 24 divisors (see below), whose sum is σ = 196672224. Its totient is φ = 18730656.

The previous prime is 70240007. The next prime is 70240021. The reversal of 70240020 is 2004207.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70240021) 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 7 ways as a sum of consecutive naturals, for example, 585274 + ... + 585393.

It is an arithmetic number, because the mean of its divisors is an integer number (8194676).

Almost surely, 2^70240020 is an apocalyptic number.

It is an amenable number.

70240020 is an abundant number, since it is smaller than the sum of its proper divisors (126432204).

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

70240020 is a wasteful number, since it uses less digits than its factorization.

70240020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170679 (or 1170677 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 70240020 is about 8380.9319290876. The cubic root of 70240020 is about 412.5990359086.

Adding to 70240020 its reverse (2004207), we get a palindrome (72244227).

The spelling of 70240020 in words is "seventy million, two hundred forty thousand, twenty".