70189450 has 12 divisors (see below), whose sum is σ = 130552470. Its totient is φ = 28075760.

The previous prime is 70189433. The next prime is 70189451. The reversal of 70189450 is 5498107.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 29062881 + 41126569 = 5391^2 + 6413^2 .

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

It is not an unprimeable number, because it can be changed into a prime (70189451) 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, 701845 + ... + 701944.

Almost surely, 2^70189450 is an apocalyptic number.

70189450 is a deficient number, since it is larger than the sum of its proper divisors (60363020).

70189450 is a wasteful number, since it uses less digits than its factorization.

70189450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403801 (or 1403796 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 70189450 is about 8377.9144182786. The cubic root of 70189450 is about 412.4999938782.

The spelling of 70189450 in words is "seventy million, one hundred eighty-nine thousand, four hundred fifty".