1399538041 has 16 divisors (see below), whose sum is σ = 1542703680. Its totient is φ = 1259089920.

The previous prime is 1399538029. The next prime is 1399538111. The reversal of 1399538041 is 1408359931.

It is not a de Polignac number, because 1399538041 - 2¹⁵ = 1399505273 is a prime.

It is a super-4 number, since 4×1399538041⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1399538011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538441 + ... + 541033.

It is an arithmetic number, because the mean of its divisors is an integer number (96418980).

Almost surely, 2^1399538041 is an apocalyptic number.

1399538041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1399538041 is a deficient number, since it is larger than the sum of its proper divisors (143165639).

1399538041 is a wasteful number, since it uses less digits than its factorization.

1399538041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1399538041 is about 37410.4001716100. The cubic root of 1399538041 is about 1118.5658836821.

The spelling of 1399538041 in words is "one billion, three hundred ninety-nine million, five hundred thirty-eight thousand, forty-one".