10401020 has 24 divisors (see below), whose sum is σ = 24962784. Its totient is φ = 3566016.

The previous prime is 10401011. The next prime is 10401023. The reversal of 10401020 is 2010401.

It is a junction number, because it is equal to n+sod(n) for n = 10400989 and 10401007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10401023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37007 + ... + 37286.

It is an arithmetic number, because the mean of its divisors is an integer number (1040116).

Almost surely, 2^10401020 is an apocalyptic number.

10401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10401020 is an abundant number, since it is smaller than the sum of its proper divisors (14561764).

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

10401020 is a wasteful number, since it uses less digits than its factorization.

10401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74309 (or 74307 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 10401020 is about 3225.0612397286. The cubic root of 10401020 is about 218.2857124093.

Adding to 10401020 its reverse (2010401), we get a palindrome (12411421).

The spelling of 10401020 in words is "ten million, four hundred one thousand, twenty".