1400868396 has 72 divisors (see below), whose sum is σ = 3671151120. Its totient is φ = 450043776.

The previous prime is 1400868377. The next prime is 1400868397. The reversal of 1400868396 is 6938680041.

1400868396 is a `hidden beast` number, since 1 + 400 + 86 + 83 + 96 = 666.

It is a super-2 number, since 2×1400868396² = 3924864525823225632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400868397) 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, 137610 + ... + 147438.

It is an arithmetic number, because the mean of its divisors is an integer number (50988210).

Almost surely, 2^1400868396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400868396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835575560).

1400868396 is an abundant number, since it is smaller than the sum of its proper divisors (2270282724).

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

1400868396 is a wasteful number, since it uses less digits than its factorization.

1400868396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9983 (or 9978 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1400868396 is about 37428.1764984617. The cubic root of 1400868396 is about 1118.9201954649.

The spelling of 1400868396 in words is "one billion, four hundred million, eight hundred sixty-eight thousand, three hundred ninety-six".