1400794320 has 80 divisors (see below), whose sum is σ = 4394843712. Its totient is φ = 369039360.

The previous prime is 1400794289. The next prime is 1400794327. The reversal of 1400794320 is 234970041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400794327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15241 + ... + 55080.

Almost surely, 2^1400794320 is an apocalyptic number.

1400794320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400794320 is an abundant number, since it is smaller than the sum of its proper divisors (2994049392).

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

1400794320 is a wasteful number, since it uses less digits than its factorization.

1400794320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70420 (or 70414 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1400794320 is about 37427.1869100524. The cubic root of 1400794320 is about 1118.9004727953.

The spelling of 1400794320 in words is "one billion, four hundred million, seven hundred ninety-four thousand, three hundred twenty".