402272244 has 180 divisors, whose sum is σ = 1196804224. Its totient is φ = 117612000.

The previous prime is 402272243. The next prime is 402272287. The reversal of 402272244 is 442272204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402272243) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1215159 + ... + 1215489.

Almost surely, 2^402272244 is an apocalyptic number.

402272244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402272244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598402112).

402272244 is an abundant number, since it is smaller than the sum of its proper divisors (794531980).

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

402272244 is a wasteful number, since it uses less digits than its factorization.

402272244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 402272244 is about 20056.7256550016. The cubic root of 402272244 is about 738.1988359736.

The spelling of 402272244 in words is "four hundred two million, two hundred seventy-two thousand, two hundred forty-four".