70040880 has 240 divisors, whose sum is σ = 289773120. Its totient is φ = 14764032.

The previous prime is 70040879. The next prime is 70040891. The reversal of 70040880 is 8804007.

It is a happy number.

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

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, 64986 + ... + 66054.

It is an arithmetic number, because the mean of its divisors is an integer number (1207388).

Almost surely, 2^70040880 is an apocalyptic number.

70040880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70040880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144886560).

70040880 is an abundant number, since it is smaller than the sum of its proper divisors (219732240).

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

70040880 is a wasteful number, since it uses less digits than its factorization.

70040880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 70040880 is about 8369.0429560374. The cubic root of 70040880 is about 412.2087420554.

Adding to 70040880 its reverse (8804007), we get a palindrome (78844887).

The spelling of 70040880 in words is "seventy million, forty thousand, eight hundred eighty".