453993078 has 64 divisors (see below), whose sum is σ = 1168588800. Its totient is φ = 114112800.

The previous prime is 453993073. The next prime is 453993083. The reversal of 453993078 is 870399354.

It is an interprime number because it is at equal distance from previous prime (453993073) and next prime (453993083).

It is a super-2 number, since 2×453993078² = 412219429743828168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453993073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1528 + ... + 30171.

It is an arithmetic number, because the mean of its divisors is an integer number (18259200).

Almost surely, 2^453993078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453993078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584294400).

453993078 is an abundant number, since it is smaller than the sum of its proper divisors (714595722).

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

453993078 is a wasteful number, since it uses less digits than its factorization.

453993078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31753.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 453993078 is about 21307.1133192650. The cubic root of 453993078 is about 768.5693782541.

The spelling of 453993078 in words is "four hundred fifty-three million, nine hundred ninety-three thousand, seventy-eight".