70729148 has 18 divisors (see below), whose sum is σ = 143984736. Its totient is φ = 30312408.

The previous prime is 70729121. The next prime is 70729159. The reversal of 70729148 is 84192707.

It is a super-2 number, since 2×70729148² = 10005224753611808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180236 + ... + 180627.

It is an arithmetic number, because the mean of its divisors is an integer number (7999152).

Almost surely, 2^70729148 is an apocalyptic number.

It is an amenable number.

70729148 is an abundant number, since it is smaller than the sum of its proper divisors (73255588).

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

70729148 is a wasteful number, since it uses less digits than its factorization.

70729148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360881 (or 360872 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 70729148 is about 8410.0623065468. The cubic root of 70729148 is about 413.5545552394.

The spelling of 70729148 in words is "seventy million, seven hundred twenty-nine thousand, one hundred forty-eight".