1402122020 has 144 divisors (see below), whose sum is σ = 3320352000. Its totient is φ = 496843776.

The previous prime is 1402121969. The next prime is 1402122031. The reversal of 1402122020 is 202212041.

1402122020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1402121986 and 1402122004.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15754136 + ... + 15754224.

It is an arithmetic number, because the mean of its divisors is an integer number (23058000).

Almost surely, 2^1402122020 is an apocalyptic number.

1402122020 is a gapful number since it is divisible by the number (10) 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 1402122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660176000).

1402122020 is an abundant number, since it is smaller than the sum of its proper divisors (1918229980).

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

1402122020 is a wasteful number, since it uses less digits than its factorization.

1402122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1402122020 is about 37444.9198156439. The cubic root of 1402122020 is about 1119.2538663509.

Adding to 1402122020 its reverse (202212041), we get a palindrome (1604334061).

The spelling of 1402122020 in words is "one billion, four hundred two million, one hundred twenty-two thousand, twenty".