1400042304 has 84 divisors (see below), whose sum is σ = 4021836000. Its totient is φ = 465649920.

The previous prime is 1400042263. The next prime is 1400042321. The reversal of 1400042304 is 4032400041.

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, 284989 + ... + 289859.

It is an arithmetic number, because the mean of its divisors is an integer number (47879000).

Almost surely, 2^1400042304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400042304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2010918000).

1400042304 is an abundant number, since it is smaller than the sum of its proper divisors (2621793696).

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

1400042304 is a wasteful number, since it uses less digits than its factorization.

1400042304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1400042304 is about 37417.1391744479. The cubic root of 1400042304 is about 1118.7002098291.

Adding to 1400042304 its reverse (4032400041), we get a palindrome (5432442345).

The spelling of 1400042304 in words is "one billion, four hundred million, forty-two thousand, three hundred four".