1401213044 has 24 divisors (see below), whose sum is σ = 3057192768. Its totient is φ = 545927040.

The previous prime is 1401213041. The next prime is 1401213053. The reversal of 1401213044 is 4403121041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401213041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274389 + ... + 2275004.

It is an arithmetic number, because the mean of its divisors is an integer number (127383032).

Almost surely, 2^1401213044 is an apocalyptic number.

1401213044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1401213044 is an abundant number, since it is smaller than the sum of its proper divisors (1655979724).

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

1401213044 is a wasteful number, since it uses less digits than its factorization.

1401213044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549415 (or 4549413 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1401213044 is about 37432.7803402312. The cubic root of 1401213044 is about 1119.0119485489.

Adding to 1401213044 its reverse (4403121041), we get a palindrome (5804334085).

The spelling of 1401213044 in words is "one billion, four hundred one million, two hundred thirteen thousand, forty-four".