1400423312 has 40 divisors (see below), whose sum is σ = 2815623360. Its totient is φ = 674271360.

The previous prime is 1400423309. The next prime is 1400423317. The reversal of 1400423312 is 2133240041.

It is a super-2 number, since 2×1400423312² = 3922370905586098688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400423317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34514 + ... + 63182.

It is an arithmetic number, because the mean of its divisors is an integer number (70390584).

Almost surely, 2^1400423312 is an apocalyptic number.

It is an amenable number.

1400423312 is an abundant number, since it is smaller than the sum of its proper divisors (1415200048).

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

1400423312 is a wasteful number, since it uses less digits than its factorization.

1400423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28791 (or 28785 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1400423312 is about 37422.2301847445. The cubic root of 1400423312 is about 1118.8016817796.

Adding to 1400423312 its reverse (2133240041), we get a palindrome (3533663353).

The spelling of 1400423312 in words is "one billion, four hundred million, four hundred twenty-three thousand, three hundred twelve".