1401844038 has 96 divisors (see below), whose sum is σ = 3538025568. Its totient is φ = 367718400.

The previous prime is 1401844033. The next prime is 1401844061. The reversal of 1401844038 is 8304481041.

It is a super-2 number, since 2×1401844038² = 3930333413752290888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401844033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201498 + ... + 208338.

It is an arithmetic number, because the mean of its divisors is an integer number (36854433).

Almost surely, 2^1401844038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401844038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769012784).

1401844038 is an abundant number, since it is smaller than the sum of its proper divisors (2136181530).

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

1401844038 is a wasteful number, since it uses less digits than its factorization.

1401844038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918 (or 6911 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1401844038 is about 37441.2077529558. The cubic root of 1401844038 is about 1119.1798944265.

The spelling of 1401844038 in words is "one billion, four hundred one million, eight hundred forty-four thousand, thirty-eight".