1400235040 has 24 divisors (see below), whose sum is σ = 3308055660. Its totient is φ = 560093952.

The previous prime is 1400235017. The next prime is 1400235097. The reversal of 1400235040 is 405320041.

It can be written as a sum of positive squares in 2 ways, for example, as 1398460816 + 1774224 = 37396^2 + 1332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1400234999 and 1400235017.

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, 4375575 + ... + 4375894.

Almost surely, 2^1400235040 is an apocalyptic number.

1400235040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400235040 is an abundant number, since it is smaller than the sum of its proper divisors (1907820620).

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

1400235040 is an equidigital number, since it uses as much as digits as its factorization.

1400235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751484 (or 8751476 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1400235040 is about 37419.7145900393. The cubic root of 1400235040 is about 1118.7515425423.

Adding to 1400235040 its reverse (405320041), we get a palindrome (1805555081).

The spelling of 1400235040 in words is "one billion, four hundred million, two hundred thirty-five thousand, forty".