1402020120 has 32 divisors (see below), whose sum is σ = 4206060720. Its totient is φ = 373872000.

The previous prime is 1402020101. The next prime is 1402020143. The reversal of 1402020120 is 210202041.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1402020096 and 1402020105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5841631 + ... + 5841870.

Almost surely, 2^1402020120 is an apocalyptic number.

1402020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402020120 is an abundant number, since it is smaller than the sum of its proper divisors (2804040600).

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

1402020120 is a wasteful number, since it uses less digits than its factorization.

1402020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11683515 (or 11683511 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1402020120 is about 37443.5591257028. The cubic root of 1402020120 is about 1119.2267515609.

Adding to 1402020120 its reverse (210202041), we get a palindrome (1612222161).

The spelling of 1402020120 in words is "one billion, four hundred two million, twenty thousand, one hundred twenty".