1673425620 has 36 divisors (see below), whose sum is σ = 5076058260. Its totient is φ = 446246784.

The previous prime is 1673425591. The next prime is 1673425669. The reversal of 1673425620 is 265243761.

1673425620 is a `hidden beast` number, since 1 + 6 + 7 + 3 + 4 + 25 + 620 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 698862096 + 974563524 = 26436^2 + 31218^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4648225 + ... + 4648584.

Almost surely, 2^1673425620 is an apocalyptic number.

1673425620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1673425620 is an abundant number, since it is smaller than the sum of its proper divisors (3402632640).

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

1673425620 is a wasteful number, since it uses less digits than its factorization.

1673425620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9296824 (or 9296819 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1673425620 is about 40907.5252245843. The cubic root of 1673425620 is about 1187.2316648731.

The spelling of 1673425620 in words is "one billion, six hundred seventy-three million, four hundred twenty-five thousand, six hundred twenty".