1400313240 has 48 divisors (see below), whose sum is σ = 4551019200. Its totient is φ = 373416768.

The previous prime is 1400313223. The next prime is 1400313259. The reversal of 1400313240 is 423130041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1944520 + ... + 1945239.

It is an arithmetic number, because the mean of its divisors is an integer number (94812900).

Almost surely, 2^1400313240 is an apocalyptic number.

1400313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400313240 is an abundant number, since it is smaller than the sum of its proper divisors (3150705960).

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

1400313240 is a wasteful number, since it uses less digits than its factorization.

1400313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889776 (or 3889769 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1400313240 is about 37420.7594791982. The cubic root of 1400313240 is about 1118.7723687464.

Adding to 1400313240 its reverse (423130041), we get a palindrome (1823443281).

The spelling of 1400313240 in words is "one billion, four hundred million, three hundred thirteen thousand, two hundred forty".