70420000 has 120 divisors (see below), whose sum is σ = 198386496. Its totient is φ = 24096000.

The previous prime is 70419989. The next prime is 70420027. The reversal of 70420000 is 2407.

It is a super-3 number, since 3×70420000³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 139749 + ... + 140251.

Almost surely, 2^70420000 is an apocalyptic number.

70420000 is a gapful number since it is divisible by the number (70) 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 70420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99193248).

70420000 is an abundant number, since it is smaller than the sum of its proper divisors (127966496).

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

70420000 is an equidigital number, since it uses as much as digits as its factorization.

70420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 70420000 is about 8391.6625289629. The cubic root of 70420000 is about 412.9511439999.

Adding to 70420000 its reverse (2407), we get a palindrome (70422407).

The spelling of 70420000 in words is "seventy million, four hundred twenty thousand".