1400868920 has 96 divisors (see below), whose sum is σ = 3554066160. Its totient is φ = 492825600.

The previous prime is 1400868893. The next prime is 1400868941. The reversal of 1400868920 is 298680041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421184 + ... + 424496.

Almost surely, 2^1400868920 is an apocalyptic number.

1400868920 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 1400868920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777033080).

1400868920 is an abundant number, since it is smaller than the sum of its proper divisors (2153197240).

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

1400868920 is a wasteful number, since it uses less digits than its factorization.

1400868920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3362 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1400868920 is about 37428.1834985349. The cubic root of 1400868920 is about 1118.9203349770.

It can be divided in two parts, 14008 and 68920, that added together give a palindrome (82928).

The spelling of 1400868920 in words is "one billion, four hundred million, eight hundred sixty-eight thousand, nine hundred twenty".