70420506 has 16 divisors (see below), whose sum is σ = 151675104. Its totient is φ = 21667824.

The previous prime is 70420487. The next prime is 70420513. The reversal of 70420506 is 60502407.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451336 + ... + 451491.

It is an arithmetic number, because the mean of its divisors is an integer number (9479694).

Almost surely, 2^70420506 is an apocalyptic number.

70420506 is an abundant number, since it is smaller than the sum of its proper divisors (81254598).

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

70420506 is a wasteful number, since it uses less digits than its factorization.

70420506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902845.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 70420506 is about 8391.6926778809. The cubic root of 70420506 is about 412.9521330786.

The spelling of 70420506 in words is "seventy million, four hundred twenty thousand, five hundred six".