70149888 has 180 divisors, whose sum is σ = 222591600. Its totient is φ = 21897216.

The previous prime is 70149851. The next prime is 70149923. The reversal of 70149888 is 88894107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 352413 + ... + 352611.

It is an arithmetic number, because the mean of its divisors is an integer number (1236620).

Almost surely, 2^70149888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70149888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111295800).

70149888 is an abundant number, since it is smaller than the sum of its proper divisors (152441712).

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

70149888 is a wasteful number, since it uses less digits than its factorization.

70149888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 70149888 is about 8375.5529966683. The cubic root of 70149888 is about 412.4224779940.

The spelling of 70149888 in words is "seventy million, one hundred forty-nine thousand, eight hundred eighty-eight".