1400020312 has 16 divisors (see below), whose sum is σ = 2779452360. Its totient is φ = 658833024.

The previous prime is 1400020309. The next prime is 1400020313. The reversal of 1400020312 is 2130200041.

It is a junction number, because it is equal to n+sod(n) for n = 1400020292 and 1400020301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400020313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5146998 + ... + 5147269.

Almost surely, 2^1400020312 is an apocalyptic number.

It is an amenable number.

1400020312 is a deficient number, since it is larger than the sum of its proper divisors (1379432048).

1400020312 is a wasteful number, since it uses less digits than its factorization.

1400020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10294290 (or 10294286 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1400020312 is about 37416.8452972722. The cubic root of 1400020312 is about 1118.6943522480.

Adding to 1400020312 its reverse (2130200041), we get a palindrome (3530220353).

The spelling of 1400020312 in words is "one billion, four hundred million, twenty thousand, three hundred twelve".