70279430 has 16 divisors (see below), whose sum is σ = 136234224. Its totient is φ = 25949280.

The previous prime is 70279409. The next prime is 70279439. The reversal of 70279430 is 3497207.

It is a happy number.

It is a super-2 number, since 2×70279430² = 9878396562249800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70279439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270176 + ... + 270435.

It is an arithmetic number, because the mean of its divisors is an integer number (8514639).

Almost surely, 2^70279430 is an apocalyptic number.

70279430 is a deficient number, since it is larger than the sum of its proper divisors (65954794).

70279430 is a wasteful number, since it uses less digits than its factorization.

70279430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540631.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 70279430 is about 8383.2827698939. The cubic root of 70279430 is about 412.6761879739.

The spelling of 70279430 in words is "seventy million, two hundred seventy-nine thousand, four hundred thirty".