70425072 has 40 divisors (see below), whose sum is σ = 202147280. Its totient is φ = 23474880.

The previous prime is 70425053. The next prime is 70425073. The reversal of 70425072 is 27052407.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70425073) 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, 81079 + ... + 81942.

It is an arithmetic number, because the mean of its divisors is an integer number (5053682).

Almost surely, 2^70425072 is an apocalyptic number.

70425072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70425072 is an abundant number, since it is smaller than the sum of its proper divisors (131722208).

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

70425072 is a wasteful number, since it uses less digits than its factorization.

70425072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163038 (or 163026 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 70425072 is about 8391.9647282386. The cubic root of 70425072 is about 412.9610580296.

Adding to 70425072 its reverse (27052407), we get a palindrome (97477479).

The spelling of 70425072 in words is "seventy million, four hundred twenty-five thousand, seventy-two".