70538040 has 224 divisors, whose sum is σ = 247892400. Its totient is φ = 18040320.

The previous prime is 70538011. The next prime is 70538077. The reversal of 70538040 is 4083507.

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 = 70537995 and 70538013.

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 55 ways as a sum of consecutive naturals, for example, 1195531 + ... + 1195589.

Almost surely, 2^70538040 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 70538040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123946200).

70538040 is an abundant number, since it is smaller than the sum of its proper divisors (177354360).

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

70538040 is a wasteful number, since it uses less digits than its factorization.

70538040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 70538040 is about 8398.6927554233. The cubic root of 70538040 is about 413.1817486699.

The spelling of 70538040 in words is "seventy million, five hundred thirty-eight thousand, forty".