70218072 has 48 divisors (see below), whose sum is σ = 200187000. Its totient is φ = 22173696.

The previous prime is 70218061. The next prime is 70218079. The reversal of 70218072 is 27081207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70218079) 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 11 ways as a sum of consecutive naturals, for example, 24297 + ... + 27032.

Almost surely, 2^70218072 is an apocalyptic number.

70218072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70218072 is an abundant number, since it is smaller than the sum of its proper divisors (129968928).

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

70218072 is a wasteful number, since it uses less digits than its factorization.

70218072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51360 (or 51353 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 70218072 is about 8379.6224258614. The cubic root of 70218072 is about 412.5560562938.

Adding to 70218072 its reverse (27081207), we get a palindrome (97299279).

The spelling of 70218072 in words is "seventy million, two hundred eighteen thousand, seventy-two".