402249300 has 144 divisors (see below), whose sum is σ = 1229004672. Its totient is φ = 101376000.

The previous prime is 402249269. The next prime is 402249301. The reversal of 402249300 is 3942204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402249301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 669000 + ... + 669600.

Almost surely, 2^402249300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402249300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614502336).

402249300 is an abundant number, since it is smaller than the sum of its proper divisors (826755372).

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

402249300 is a wasteful number, since it uses less digits than its factorization.

402249300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 402249300 is about 20056.1536691361. The cubic root of 402249300 is about 738.1848010703.

The spelling of 402249300 in words is "four hundred two million, two hundred forty-nine thousand, three hundred".