70642950 has 96 divisors (see below), whose sum is σ = 210819840. Its totient is φ = 15292800.

The previous prime is 70642921. The next prime is 70642963. The reversal of 70642950 is 5924607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18180 + ... + 21720.

It is an arithmetic number, because the mean of its divisors is an integer number (2196040).

Almost surely, 2^70642950 is an apocalyptic number.

70642950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70642950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105409920).

70642950 is an abundant number, since it is smaller than the sum of its proper divisors (140176890).

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

70642950 is a wasteful number, since it uses less digits than its factorization.

70642950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 70642950 is about 8404.9360497270. The cubic root of 70642950 is about 413.3864865451.

The spelling of 70642950 in words is "seventy million, six hundred forty-two thousand, nine hundred fifty".