1604431150 has 48 divisors (see below), whose sum is σ = 3466519200. Its totient is φ = 541065600.

The previous prime is 1604431123. The next prime is 1604431261. The reversal of 1604431150 is 511344061.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16225 + ... + 58924.

It is an arithmetic number, because the mean of its divisors is an integer number (72219150).

Almost surely, 2^1604431150 is an apocalyptic number.

1604431150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1604431150 is an abundant number, since it is smaller than the sum of its proper divisors (1862088050).

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

1604431150 is a wasteful number, since it uses less digits than its factorization.

1604431150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75229 (or 75224 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1604431150 is about 40055.3510782267. The cubic root of 1604431150 is about 1170.6858301564.

The spelling of 1604431150 in words is "one billion, six hundred four million, four hundred thirty-one thousand, one hundred fifty".