451492902 has 192 divisors, whose sum is σ = 1248234624. Its totient is φ = 115015680.

The previous prime is 451492901. The next prime is 451492949. The reversal of 451492902 is 209294154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451492901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4654518 + ... + 4654614.

It is an arithmetic number, because the mean of its divisors is an integer number (6501222).

Almost surely, 2^451492902 is an apocalyptic number.

451492902 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 451492902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624117312).

451492902 is an abundant number, since it is smaller than the sum of its proper divisors (796741722).

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

451492902 is a wasteful number, since it uses less digits than its factorization.

451492902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 451492902 is about 21248.3623368955. The cubic root of 451492902 is about 767.1559228284.

The spelling of 451492902 in words is "four hundred fifty-one million, four hundred ninety-two thousand, nine hundred two".