70738020 has 72 divisors (see below), whose sum is σ = 227203704. Its totient is φ = 17753088.

The previous prime is 70738009. The next prime is 70738039. The reversal of 70738020 is 2083707.

It can be written as a sum of positive squares in 4 ways, for example, as 580644 + 70157376 = 762^2 + 8376^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8499 + ... + 14618.

It is an arithmetic number, because the mean of its divisors is an integer number (3155607).

Almost surely, 2^70738020 is an apocalyptic number.

It is an amenable number.

70738020 is an abundant number, since it is smaller than the sum of its proper divisors (156465684).

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

70738020 is a wasteful number, since it uses less digits than its factorization.

70738020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23149 (or 23144 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70738020 is about 8410.5897534002. The cubic root of 70738020 is about 413.5718460958.

The spelling of 70738020 in words is "seventy million, seven hundred thirty-eight thousand, twenty".