70070428 has 12 divisors (see below), whose sum is σ = 122682280. Its totient is φ = 35018352.

The previous prime is 70070419. The next prime is 70070471. The reversal of 70070428 is 82407007.

It is a junction number, because it is equal to n+sod(n) for n = 70070396 and 70070405.

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 in 3 ways as a sum of consecutive naturals, for example, 12475 + ... + 17197.

Almost surely, 2^70070428 is an apocalyptic number.

It is an amenable number.

70070428 is a deficient number, since it is larger than the sum of its proper divisors (52611852).

70070428 is a wasteful number, since it uses less digits than its factorization.

70070428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436 (or 8434 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 70070428 is about 8370.8080852448. The cubic root of 70070428 is about 412.2666997869.

The spelling of 70070428 in words is "seventy million, seventy thousand, four hundred twenty-eight".