70454520 has 192 divisors, whose sum is σ = 244408320. Its totient is φ = 17563392.

The previous prime is 70454519. The next prime is 70454521. The reversal of 70454520 is 2545407.

It is an interprime number because it is at equal distance from previous prime (70454519) and next prime (70454521).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70454521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 554697 + ... + 554823.

It is an arithmetic number, because the mean of its divisors is an integer number (1272960).

Almost surely, 2^70454520 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 70454520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122204160).

70454520 is an abundant number, since it is smaller than the sum of its proper divisors (173953800).

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

70454520 is a wasteful number, since it uses less digits than its factorization.

70454520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 70454520 is about 8393.7190803600. The cubic root of 70454520 is about 413.0186094208.

Adding to 70454520 its reverse (2545407), we get a palindrome (72999927).

The spelling of 70454520 in words is "seventy million, four hundred fifty-four thousand, five hundred twenty".