1401020 has 12 divisors (see below), whose sum is σ = 2942184. Its totient is φ = 560400.

The previous prime is 1401017. The next prime is 1401031. The reversal of 1401020 is 201041.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1400989 and 1401007.

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, 35006 + ... + 35045.

It is an arithmetic number, because the mean of its divisors is an integer number (245182).

2^1401020 is an apocalyptic number.

1401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401020 is an abundant number, since it is smaller than the sum of its proper divisors (1541164).

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

1401020 is a wasteful number, since it uses less digits than its factorization.

1401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70060 (or 70058 counting only the distinct ones).

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

The square root of 1401020 is about 1183.6469068096. The cubic root of 1401020 is about 111.8960557728.

Adding to 1401020 its reverse (201041), we get a palindrome (1602061).

The spelling of 1401020 in words is "one million, four hundred one thousand, twenty".