70495420 has 24 divisors (see below), whose sum is σ = 148204224. Its totient is φ = 28166976.

The previous prime is 70495417. The next prime is 70495421. The reversal of 70495420 is 2459407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70495421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27222 + ... + 29698.

It is an arithmetic number, because the mean of its divisors is an integer number (6175176).

Almost surely, 2^70495420 is an apocalyptic number.

It is an amenable number.

70495420 is an abundant number, since it is smaller than the sum of its proper divisors (77708804).

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

70495420 is a wasteful number, since it uses less digits than its factorization.

70495420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3907 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 70495420 is about 8396.1550724126. The cubic root of 70495420 is about 413.0985153109.

The spelling of 70495420 in words is "seventy million, four hundred ninety-five thousand, four hundred twenty".