1604263157 has 16 divisors (see below), whose sum is σ = 2043469440. Its totient is φ = 1226078208.

The previous prime is 1604263153. The next prime is 1604263187. The reversal of 1604263157 is 7513624061.

It is not a de Polignac number, because 1604263157 - 2² = 1604263153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604263153) 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, 352508 + ... + 357029.

It is an arithmetic number, because the mean of its divisors is an integer number (127716840).

Almost surely, 2^1604263157 is an apocalyptic number.

1604263157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1604263157 is a deficient number, since it is larger than the sum of its proper divisors (439206283).

1604263157 is a wasteful number, since it uses less digits than its factorization.

1604263157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709580.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1604263157 is about 40053.2540126267. The cubic root of 1604263157 is about 1170.6449695916.

The spelling of 1604263157 in words is "one billion, six hundred four million, two hundred sixty-three thousand, one hundred fifty-seven".