70767540 has 96 divisors (see below), whose sum is σ = 227808000. Its totient is φ = 18216576.

The previous prime is 70767539. The next prime is 70767547. The reversal of 70767540 is 4576707.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 70767495 and 70767504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70767547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13401 + ... + 17919.

It is an arithmetic number, because the mean of its divisors is an integer number (2373000).

Almost surely, 2^70767540 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 70767540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113904000).

70767540 is an abundant number, since it is smaller than the sum of its proper divisors (157040460).

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

70767540 is a wasteful number, since it uses less digits than its factorization.

70767540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566 (or 4558 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 70767540 is about 8412.3445007917. The cubic root of 70767540 is about 413.6293679349.

The spelling of 70767540 in words is "seventy million, seven hundred sixty-seven thousand, five hundred forty".