70490784 has 96 divisors (see below), whose sum is σ = 227767680. Its totient is φ = 18588672.

The previous prime is 70490743. The next prime is 70490801. The reversal of 70490784 is 48709407.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4702 + ... + 12770.

It is an arithmetic number, because the mean of its divisors is an integer number (2372580).

Almost surely, 2^70490784 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 70490784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113883840).

70490784 is an abundant number, since it is smaller than the sum of its proper divisors (157276896).

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

70490784 is a wasteful number, since it uses less digits than its factorization.

70490784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102 (or 8094 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 70490784 is about 8395.8789891232. The cubic root of 70490784 is about 413.0894595609.

It can be divided in two parts, 704 and 90784, that multiplied together give a palindrome (63911936).

The spelling of 70490784 in words is "seventy million, four hundred ninety thousand, seven hundred eighty-four".