70549236 has 18 divisors (see below), whose sum is σ = 178332882. Its totient is φ = 23516400.

The previous prime is 70549231. The next prime is 70549247. The reversal of 70549236 is 63294507.

It can be written as a sum of positive squares in only one way, i.e., 70459236 + 90000 = 8394^2 + 300^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1959701 = 70549236 / (7 + 0 + 5 + 4 + 9 + 2 + 3 + 6).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70549236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70549231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 979815 + ... + 979886.

Almost surely, 2^70549236 is an apocalyptic number.

It is an amenable number.

70549236 is an abundant number, since it is smaller than the sum of its proper divisors (107783646).

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

70549236 is a wasteful number, since it uses less digits than its factorization.

70549236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959711 (or 1959706 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 70549236 is about 8399.3592612770. The cubic root of 70549236 is about 413.2036079774.

It can be divided in two parts, 7054 and 9236, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 70549236 in words is "seventy million, five hundred forty-nine thousand, two hundred thirty-six".