70738540 has 24 divisors (see below), whose sum is σ = 153674640. Its totient is φ = 27319488.

The previous prime is 70738537. The next prime is 70738541. The reversal of 70738540 is 4583707.

It is a junction number, because it is equal to n+sod(n) for n = 70738496 and 70738505.

It is not an unprimeable number, because it can be changed into a prime (70738541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60402 + ... + 61561.

It is an arithmetic number, because the mean of its divisors is an integer number (6403110).

Almost surely, 2^70738540 is an apocalyptic number.

It is an amenable number.

70738540 is an abundant number, since it is smaller than the sum of its proper divisors (82936100).

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

70738540 is a wasteful number, since it uses less digits than its factorization.

70738540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122001 (or 121999 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 70738540 is about 8410.6206667522. The cubic root of 70738540 is about 413.5728594916.

The spelling of 70738540 in words is "seventy million, seven hundred thirty-eight thousand, five hundred forty".