70727040 has 128 divisors (see below), whose sum is σ = 250552800. Its totient is φ = 18855936.

The previous prime is 70727029. The next prime is 70727051. The reversal of 70727040 is 4072707.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70727029) and next prime (70727051).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 70726995 and 70727013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15234 + ... + 19326.

Almost surely, 2^70727040 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 70727040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125276400).

70727040 is an abundant number, since it is smaller than the sum of its proper divisors (179825760).

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

70727040 is a wasteful number, since it uses less digits than its factorization.

70727040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121 (or 4103 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 70727040 is about 8409.9369795498. The cubic root of 70727040 is about 413.5504466944.

Adding to 70727040 its reverse (4072707), we get a palindrome (74799747).

The spelling of 70727040 in words is "seventy million, seven hundred twenty-seven thousand, forty".