70428448 has 12 divisors (see below), whose sum is σ = 138656070. Its totient is φ = 35214208.

The previous prime is 70428439. The next prime is 70428469. The reversal of 70428448 is 84482407.

It can be written as a sum of positive squares in only one way, i.e., 37112464 + 33315984 = 6092^2 + 5772^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100413 + ... + 1100476.

Almost surely, 2^70428448 is an apocalyptic number.

It is an amenable number.

70428448 is a deficient number, since it is larger than the sum of its proper divisors (68227622).

70428448 is a wasteful number, since it uses less digits than its factorization.

70428448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200899 (or 2200891 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 37.

The square root of 70428448 is about 8392.1658706201. The cubic root of 70428448 is about 412.9676566940.

It can be divided in two parts, 70428 and 448, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 70428448 in words is "seventy million, four hundred twenty-eight thousand, four hundred forty-eight".