1400120312 has 32 divisors (see below), whose sum is σ = 2687588400. Its totient is φ = 683596800.

The previous prime is 1400120297. The next prime is 1400120329. The reversal of 1400120312 is 2130210041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57512 + ... + 78152.

Almost surely, 2^1400120312 is an apocalyptic number.

It is an amenable number.

1400120312 is a deficient number, since it is larger than the sum of its proper divisors (1287468088).

1400120312 is a wasteful number, since it uses less digits than its factorization.

1400120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20847 (or 20843 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1400120312 is about 37418.1815699267. The cubic root of 1400120312 is about 1118.7209868073.

Adding to 1400120312 its reverse (2130210041), we get a palindrome (3530330353).

The spelling of 1400120312 in words is "one billion, four hundred million, one hundred twenty thousand, three hundred twelve".