1400440100 has 36 divisors (see below), whose sum is σ = 3171088704. Its totient is φ = 535819680.

The previous prime is 1400440099. The next prime is 1400440109. The reversal of 1400440100 is 10440041.

It is a super-2 number, since 2×1400440100² = 3922464947376020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400440109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302144 + ... + 306743.

Almost surely, 2^1400440100 is an apocalyptic number.

1400440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400440100 is an abundant number, since it is smaller than the sum of its proper divisors (1770648604).

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

1400440100 is a wasteful number, since it uses less digits than its factorization.

1400440100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608924 (or 608917 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1400440100 is about 37422.4544892502. The cubic root of 1400440100 is about 1118.8061524201.

Adding to 1400440100 its reverse (10440041), we get a palindrome (1410880141).

The spelling of 1400440100 in words is "one billion, four hundred million, four hundred forty thousand, one hundred".