70035420 has 192 divisors, whose sum is σ = 245661696. Its totient is φ = 14515200.

The previous prime is 70035409. The next prime is 70035451. The reversal of 70035420 is 2453007.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 551397 + ... + 551523.

It is an arithmetic number, because the mean of its divisors is an integer number (1279488).

Almost surely, 2^70035420 is an apocalyptic number.

70035420 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 70035420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122830848).

70035420 is an abundant number, since it is smaller than the sum of its proper divisors (175626276).

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

70035420 is a wasteful number, since it uses less digits than its factorization.

70035420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 70035420 is about 8368.7167475068. The cubic root of 70035420 is about 412.1980306051.

Adding to 70035420 its reverse (2453007), we get a palindrome (72488427).

The spelling of 70035420 in words is "seventy million, thirty-five thousand, four hundred twenty".