70223072 has 12 divisors (see below), whose sum is σ = 138251736. Its totient is φ = 35111520.

The previous prime is 70223057. The next prime is 70223081. The reversal of 70223072 is 27032207.

It is a super-2 number, since 2×70223072² = 9862559682234368, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1097204 + ... + 1097267.

It is an arithmetic number, because the mean of its divisors is an integer number (11520978).

Almost surely, 2^70223072 is an apocalyptic number.

It is an amenable number.

70223072 is a deficient number, since it is larger than the sum of its proper divisors (68028664).

70223072 is a wasteful number, since it uses less digits than its factorization.

70223072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194481 (or 2194473 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 70223072 is about 8379.9207633485. The cubic root of 70223072 is about 412.5658483187.

Adding to 70223072 its reverse (27032207), we get a palindrome (97255279).

The spelling of 70223072 in words is "seventy million, two hundred twenty-three thousand, seventy-two".