1400320120 has 32 divisors (see below), whose sum is σ = 3163924800. Its totient is φ = 557780608.

The previous prime is 1400320111. The next prime is 1400320133. The reversal of 1400320120 is 210230041.

It is a self number, because there is not a number n which added to its sum of digits gives 1400320120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63679 + ... + 82798.

It is an arithmetic number, because the mean of its divisors is an integer number (98872650).

Almost surely, 2^1400320120 is an apocalyptic number.

1400320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400320120 is an abundant number, since it is smaller than the sum of its proper divisors (1763604680).

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

1400320120 is a wasteful number, since it uses less digits than its factorization.

1400320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146727 (or 146723 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1400320120 is about 37420.8514066690. The cubic root of 1400320120 is about 1118.7742009891.

Adding to 1400320120 its reverse (210230041), we get a palindrome (1610550161).

The spelling of 1400320120 in words is "one billion, four hundred million, three hundred twenty thousand, one hundred twenty".