1400838912 has 216 divisors, whose sum is σ = 4550827008. Its totient is φ = 410572800.

The previous prime is 1400838911. The next prime is 1400838949. The reversal of 1400838912 is 2198380041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1400838911) 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, 784773 + ... + 786555.

Almost surely, 2^1400838912 is an apocalyptic number.

1400838912 is a gapful number since it is divisible by the number (12) 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 1400838912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275413504).

1400838912 is an abundant number, since it is smaller than the sum of its proper divisors (3149988096).

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

1400838912 is a wasteful number, since it uses less digits than its factorization.

1400838912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1400838912 is about 37427.7826220042. The cubic root of 1400838912 is about 1118.9123454592.

The spelling of 1400838912 in words is "one billion, four hundred million, eight hundred thirty-eight thousand, nine hundred twelve".