70451020 has 12 divisors (see below), whose sum is σ = 147947184. Its totient is φ = 28180400.

The previous prime is 70450987. The next prime is 70451021. The reversal of 70451020 is 2015407.

It is not an unprimeable number, because it can be changed into a prime (70451021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761256 + ... + 1761295.

It is an arithmetic number, because the mean of its divisors is an integer number (12328932).

Almost surely, 2^70451020 is an apocalyptic number.

It is an amenable number.

70451020 is an abundant number, since it is smaller than the sum of its proper divisors (77496164).

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

70451020 is a wasteful number, since it uses less digits than its factorization.

70451020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522560 (or 3522558 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 70451020 is about 8393.5105885440. The cubic root of 70451020 is about 413.0117700722.

Adding to 70451020 its reverse (2015407), we get a palindrome (72466427).

The spelling of 70451020 in words is "seventy million, four hundred fifty-one thousand, twenty".