1400489296 has 20 divisors (see below), whose sum is σ = 2719399732. Its totient is φ = 698708736.

The previous prime is 1400489287. The next prime is 1400489303. The reversal of 1400489296 is 6929840041.

It can be written as a sum of positive squares in 2 ways, for example, as 961000000 + 439489296 = 31000^2 + 20964^2 .

It is a super-2 number, since 2×1400489296² = 3922740536421151232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88455 + ... + 103078.

Almost surely, 2^1400489296 is an apocalyptic number.

1400489296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1400489296 is a deficient number, since it is larger than the sum of its proper divisors (1318910436).

1400489296 is a wasteful number, since it uses less digits than its factorization.

1400489296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191998 (or 191992 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1400489296 is about 37423.1117893742. Note that the first 3 decimals coincide. The cubic root of 1400489296 is about 1118.8192530978.

The spelling of 1400489296 in words is "one billion, four hundred million, four hundred eighty-nine thousand, two hundred ninety-six".