1673216454 has 64 divisors (see below), whose sum is σ = 4126348800. Its totient is φ = 440467200.

The previous prime is 1673216423. The next prime is 1673216471. The reversal of 1673216454 is 4546123761.

It is a happy number.

1673216454 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×1673216454⁴ (a number of 38 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325597 + ... + 330695.

It is an arithmetic number, because the mean of its divisors is an integer number (64474200).

Almost surely, 2^1673216454 is an apocalyptic number.

1673216454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1673216454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063174400).

1673216454 is an abundant number, since it is smaller than the sum of its proper divisors (2453132346).

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

1673216454 is a wasteful number, since it uses less digits than its factorization.

1673216454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725.

The product of its digits is 120960, while the sum is 39.

The square root of 1673216454 is about 40904.9685735119. The cubic root of 1673216454 is about 1187.1821977117.

The spelling of 1673216454 in words is "one billion, six hundred seventy-three million, two hundred sixteen thousand, four hundred fifty-four".