1604561070 has 32 divisors (see below), whose sum is σ = 4401082368. Its totient is φ = 366756768.

The previous prime is 1604561051. The next prime is 1604561087. The reversal of 1604561070 is 701654061.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3820174 + ... + 3820593.

It is an arithmetic number, because the mean of its divisors is an integer number (137533824).

Almost surely, 2^1604561070 is an apocalyptic number.

1604561070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1604561070 is an abundant number, since it is smaller than the sum of its proper divisors (2796521298).

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

1604561070 is a wasteful number, since it uses less digits than its factorization.

1604561070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640784.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1604561070 is about 40056.9728012490. The cubic root of 1604561070 is about 1170.7174283541.

The spelling of 1604561070 in words is "one billion, six hundred four million, five hundred sixty-one thousand, seventy".