170070420 has 96 divisors (see below), whose sum is σ = 515144448. Its totient is φ = 41674752.

The previous prime is 170070409. The next prime is 170070421. The reversal of 170070420 is 24070071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170070421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262537 + ... + 263183.

It is an arithmetic number, because the mean of its divisors is an integer number (5366088).

Almost surely, 2^170070420 is an apocalyptic number.

170070420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 170070420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257572224).

170070420 is an abundant number, since it is smaller than the sum of its proper divisors (345074028).

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

170070420 is a wasteful number, since it uses less digits than its factorization.

170070420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 170070420 is about 13041.1050145300. The cubic root of 170070420 is about 554.0423058484.

The spelling of 170070420 in words is "one hundred seventy million, seventy thousand, four hundred twenty".