70401020 has 12 divisors (see below), whose sum is σ = 147842184. Its totient is φ = 28160400.

The previous prime is 70401017. The next prime is 70401043. The reversal of 70401020 is 2010407.

70401020 = 2963² + 2964² + ... + 2970².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70400986 and 70401004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760006 + ... + 1760045.

It is an arithmetic number, because the mean of its divisors is an integer number (12320182).

Almost surely, 2^70401020 is an apocalyptic number.

It is an amenable number.

70401020 is an abundant number, since it is smaller than the sum of its proper divisors (77441164).

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

70401020 is a wasteful number, since it uses less digits than its factorization.

70401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520060 (or 3520058 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 70401020 is about 8390.5315683811. The cubic root of 70401020 is about 412.9140403504.

Adding to 70401020 its reverse (2010407), we get a palindrome (72411427).

The spelling of 70401020 in words is "seventy million, four hundred one thousand, twenty".