1601257396 has 12 divisors (see below), whose sum is σ = 2802481920. Its totient is φ = 800548280.

The previous prime is 1601257373. The next prime is 1601257397. The reversal of 1601257396 is 6937521061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601257397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61485 + ... + 83563.

It is an arithmetic number, because the mean of its divisors is an integer number (233540160).

Almost surely, 2^1601257396 is an apocalyptic number.

It is an amenable number.

1601257396 is a deficient number, since it is larger than the sum of its proper divisors (1201224524).

1601257396 is a wasteful number, since it uses less digits than its factorization.

1601257396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40214 (or 40212 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1601257396 is about 40015.7143632349. The cubic root of 1601257396 is about 1169.9134024104.

The spelling of 1601257396 in words is "one billion, six hundred one million, two hundred fifty-seven thousand, three hundred ninety-six".