70235040 has 48 divisors (see below), whose sum is σ = 221241888. Its totient is φ = 18729216.

The previous prime is 70235027. The next prime is 70235051. The reversal of 70235040 is 4053207.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 70234998 and 70235016.

It is an unprimeable number.

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, 72682 + ... + 73641.

It is an arithmetic number, because the mean of its divisors is an integer number (4609206).

Almost surely, 2^70235040 is an apocalyptic number.

It is an amenable number.

70235040 is an abundant number, since it is smaller than the sum of its proper divisors (151006848).

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

70235040 is a wasteful number, since it uses less digits than its factorization.

70235040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146341 (or 146333 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 70235040 is about 8380.6348208235. The cubic root of 70235040 is about 412.5892846217.

Adding to 70235040 its reverse (4053207), we get a palindrome (74288247).

The spelling of 70235040 in words is "seventy million, two hundred thirty-five thousand, forty".