70490745 has 96 divisors (see below), whose sum is σ = 142571520. Its totient is φ = 32123520.

The previous prime is 70490743. The next prime is 70490801. The reversal of 70490745 is 54709407.

It is a happy number.

It is not a de Polignac number, because 70490745 - 2¹ = 70490743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70490743) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2273880 + ... + 2273910.

It is an arithmetic number, because the mean of its divisors is an integer number (1485120).

Almost surely, 2^70490745 is an apocalyptic number.

It is an amenable number.

70490745 is an abundant number, since it is smaller than the sum of its proper divisors (72080775).

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

70490745 is a wasteful number, since it uses less digits than its factorization.

70490745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70490745 is about 8395.8766665548. The cubic root of 70490745 is about 413.0893833784.

The spelling of 70490745 in words is "seventy million, four hundred ninety thousand, seven hundred forty-five".