70018800 has 240 divisors, whose sum is σ = 245400960. Its totient is φ = 17003520.

The previous prime is 70018787. The next prime is 70018843. The reversal of 70018800 is 881007.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843559 + ... + 843641.

It is an arithmetic number, because the mean of its divisors is an integer number (1022504).

Almost surely, 2^70018800 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 70018800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122700480).

70018800 is an abundant number, since it is smaller than the sum of its proper divisors (175382160).

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

70018800 is a wasteful number, since it uses less digits than its factorization.

70018800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 70018800 is about 8367.7237048077. The cubic root of 70018800 is about 412.1654219944.

Adding to 70018800 its reverse (881007), we get a palindrome (70899807).

The spelling of 70018800 in words is "seventy million, eighteen thousand, eight hundred".