70221546 has 32 divisors (see below), whose sum is σ = 156729600. Its totient is φ = 23304960.

The previous prime is 70221539. The next prime is 70221581. The reversal of 70221546 is 64512207.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10186 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (4897800).

Almost surely, 2^70221546 is an apocalyptic number.

70221546 is an abundant number, since it is smaller than the sum of its proper divisors (86508054).

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

70221546 is a wasteful number, since it uses less digits than its factorization.

70221546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691 (or 5685 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 70221546 is about 8379.8297118736. The cubic root of 70221546 is about 412.5628598419.

The spelling of 70221546 in words is "seventy million, two hundred twenty-one thousand, five hundred forty-six".