70150720 has 56 divisors (see below), whose sum is σ = 167892984. Its totient is φ = 27918336.

The previous prime is 70150711. The next prime is 70150727. The reversal of 70150720 is 2705107.

It can be written as a sum of positive squares in 4 ways, for example, as 9684544 + 60466176 = 3112^2 + 7776^2 .

It is a super-2 number, since 2×70150720² = 9842247033036800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70150691 and 70150700.

It is not an unprimeable number, because it can be changed into a prime (70150727) 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, 81814 + ... + 82666.

It is an arithmetic number, because the mean of its divisors is an integer number (2998089).

Almost surely, 2^70150720 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 70150720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83946492).

70150720 is an abundant number, since it is smaller than the sum of its proper divisors (97742264).

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

70150720 is a wasteful number, since it uses less digits than its factorization.

70150720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 70150720 is about 8375.6026648833. The cubic root of 70150720 is about 412.4241084749.

Adding to 70150720 its reverse (2705107), we get a palindrome (72855827).

The spelling of 70150720 in words is "seventy million, one hundred fifty thousand, seven hundred twenty".