1400120120 has 96 divisors (see below), whose sum is σ = 3673285200. Its totient is φ = 478904832.

The previous prime is 1400120039. The next prime is 1400120123. The reversal of 1400120120 is 210210041.

1400120120 is a modest number, since divided by 120120 gives 1400 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400120123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1585199 + ... + 1586081.

Almost surely, 2^1400120120 is an apocalyptic number.

1400120120 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 1400120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1836642600).

1400120120 is an abundant number, since it is smaller than the sum of its proper divisors (2273165080).

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

1400120120 is a wasteful number, since it uses less digits than its factorization.

1400120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1400120120 is about 37418.1790043289. The cubic root of 1400120120 is about 1118.7209356701.

Adding to 1400120120 its reverse (210210041), we get a palindrome (1610330161).

The spelling of 1400120120 in words is "one billion, four hundred million, one hundred twenty thousand, one hundred twenty".