673565040 has 60 divisors (see below), whose sum is σ = 2262058344. Its totient is φ = 179617152.

The previous prime is 673565027. The next prime is 673565059. The reversal of 673565040 is 40565376.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×673565040² = 907379726220403200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 673564986 and 673565004.

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, 467034 + ... + 468473.

Almost surely, 2^673565040 is an apocalyptic number.

673565040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

673565040 is an abundant number, since it is smaller than the sum of its proper divisors (1588493304).

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

673565040 is a wasteful number, since it uses less digits than its factorization.

673565040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935526 (or 935517 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 673565040 is about 25953.1316029492. The cubic root of 673565040 is about 876.5832732740.

The spelling of 673565040 in words is "six hundred seventy-three million, five hundred sixty-five thousand, forty".