1400684320 has 48 divisors (see below), whose sum is σ = 3781850688. Its totient is φ = 480234240.

The previous prime is 1400684309. The next prime is 1400684333. The reversal of 1400684320 is 234860041.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624186 + ... + 626425.

It is an arithmetic number, because the mean of its divisors is an integer number (78788556).

Almost surely, 2^1400684320 is an apocalyptic number.

1400684320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400684320 is an abundant number, since it is smaller than the sum of its proper divisors (2381166368).

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

1400684320 is a wasteful number, since it uses less digits than its factorization.

1400684320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250633 (or 1250625 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1400684320 is about 37425.7173611943. The cubic root of 1400684320 is about 1118.8711841096.

The spelling of 1400684320 in words is "one billion, four hundred million, six hundred eighty-four thousand, three hundred twenty".