70161240 has 32 divisors (see below), whose sum is σ = 210484080. Its totient is φ = 18709632.

The previous prime is 70161239. The next prime is 70161263. The reversal of 70161240 is 4216107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292219 + ... + 292458.

Almost surely, 2^70161240 is an apocalyptic number.

It is an amenable number.

70161240 is an abundant number, since it is smaller than the sum of its proper divisors (140322840).

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

70161240 is a wasteful number, since it uses less digits than its factorization.

70161240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584691 (or 584687 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 70161240 is about 8376.2306558499. The cubic root of 70161240 is about 412.4447235389. Note that the first 3 decimals are identical.

Adding to 70161240 its reverse (4216107), we get a palindrome (74377347).

It can be divided in two parts, 7016 and 1240, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 70161240 in words is "seventy million, one hundred sixty-one thousand, two hundred forty".