70345458 has 12 divisors (see below), whose sum is σ = 152415198. Its totient is φ = 23448480.

The previous prime is 70345453. The next prime is 70345481. The reversal of 70345458 is 85454307.

It can be written as a sum of positive squares in only one way, i.e., 66048129 + 4297329 = 8127^2 + 2073^2 .

It is a super-2 number, since 2×70345458² = 9896966922459528, which contains 22 as substring.

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 (70345453) 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, 1954023 + ... + 1954058.

Almost surely, 2^70345458 is an apocalyptic number.

70345458 is an abundant number, since it is smaller than the sum of its proper divisors (82069740).

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

70345458 is a wasteful number, since it uses less digits than its factorization.

70345458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908089 (or 3908086 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 70345458 is about 8387.2199208081. The cubic root of 70345458 is about 412.8053848788.

The spelling of 70345458 in words is "seventy million, three hundred forty-five thousand, four hundred fifty-eight".