70273040 has 20 divisors (see below), whose sum is σ = 163385004. Its totient is φ = 28109184.

The previous prime is 70273009. The next prime is 70273081. The reversal of 70273040 is 4037207.

It can be written as a sum of positive squares in 2 ways, for example, as 33500944 + 36772096 = 5788^2 + 6064^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 70272997 and 70273015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439127 + ... + 439286.

Almost surely, 2^70273040 is an apocalyptic number.

It is an amenable number.

70273040 is an abundant number, since it is smaller than the sum of its proper divisors (93111964).

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

70273040 is a wasteful number, since it uses less digits than its factorization.

70273040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878426 (or 878420 counting only the distinct ones).

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

The square root of 70273040 is about 8382.9016456117. The cubic root of 70273040 is about 412.6636803750.

The spelling of 70273040 in words is "seventy million, two hundred seventy-three thousand, forty".