70770040 has 32 divisors (see below), whose sum is σ = 173709360. Its totient is φ = 25734400.

The previous prime is 70770019. The next prime is 70770047. The reversal of 70770040 is 4007707.

It is a super-3 number, since 3×70770040³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70769987 and 70770014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70770047) 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, 79981 + ... + 80860.

Almost surely, 2^70770040 is an apocalyptic number.

It is an amenable number.

70770040 is an abundant number, since it is smaller than the sum of its proper divisors (102939320).

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

70770040 is a wasteful number, since it uses less digits than its factorization.

70770040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160863 (or 160859 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 70770040 is about 8412.4930906361. The cubic root of 70770040 is about 413.6342386296.

Adding to 70770040 its reverse (4007707), we get a palindrome (74777747).

The spelling of 70770040 in words is "seventy million, seven hundred seventy thousand, forty".