1609464654 has 80 divisors (see below), whose sum is σ = 4338576000. Its totient is φ = 435638736.

The previous prime is 1609464601. The next prime is 1609464667. The reversal of 1609464654 is 4564649061.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15804 + ... + 58895.

It is an arithmetic number, because the mean of its divisors is an integer number (54232200).

Almost surely, 2^1609464654 is an apocalyptic number.

1609464654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1609464654 is an abundant number, since it is smaller than the sum of its proper divisors (2729111346).

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

1609464654 is a wasteful number, since it uses less digits than its factorization.

1609464654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74739 (or 74730 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 1609464654 is about 40118.1337302721. The cubic root of 1609464654 is about 1171.9087974125.

It can be divided in two parts, 160946 and 4654, that added together give a triangular number (165600 = T₅₇₅).

The spelling of 1609464654 in words is "one billion, six hundred nine million, four hundred sixty-four thousand, six hundred fifty-four".