70208406 has 48 divisors (see below), whose sum is σ = 155937600. Its totient is φ = 22823424.

The previous prime is 70208399. The next prime is 70208431. The reversal of 70208406 is 60480207.

It is a self number, because there is not a number n which added to its sum of digits gives 70208406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137680 + ... + 138188.

It is an arithmetic number, because the mean of its divisors is an integer number (3248700).

Almost surely, 2^70208406 is an apocalyptic number.

70208406 is an abundant number, since it is smaller than the sum of its proper divisors (85729194).

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

70208406 is a wasteful number, since it uses less digits than its factorization.

70208406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 70208406 is about 8379.0456497145. The cubic root of 70208406 is about 412.5371250333.

The spelling of 70208406 in words is "seventy million, two hundred eight thousand, four hundred six".