1601443415 has 32 divisors (see below), whose sum is σ = 2330560512. Its totient is φ = 1040400000.

The previous prime is 1601443409. The next prime is 1601443433. The reversal of 1601443415 is 5143441061.

It is not a de Polignac number, because 1601443415 - 2⁴ = 1601443399 is a prime.

It is a super-2 number, since 2×1601443415² = 5129242022893724450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13961 + ... + 58290.

It is an arithmetic number, because the mean of its divisors is an integer number (72830016).

Almost surely, 2^1601443415 is an apocalyptic number.

1601443415 is a deficient number, since it is larger than the sum of its proper divisors (729117097).

1601443415 is a wasteful number, since it uses less digits than its factorization.

1601443415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72311.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1601443415 is about 40018.0386201023. The cubic root of 1601443415 is about 1169.9587038289.

Adding to 1601443415 its reverse (5143441061), we get a palindrome (6744884476).

The spelling of 1601443415 in words is "one billion, six hundred one million, four hundred forty-three thousand, four hundred fifteen".