402273250 has 64 divisors (see below), whose sum is σ = 781144416. Its totient is φ = 155001600.

The previous prime is 402273247. The next prime is 402273257. The reversal of 402273250 is 52372204.

It can be written as a sum of positive squares in 16 ways, for example, as 28740321 + 373532929 = 5361^2 + 19327^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (402273257) 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, 1452112 + ... + 1452388.

Almost surely, 2^402273250 is an apocalyptic number.

402273250 is a deficient number, since it is larger than the sum of its proper divisors (378871166).

402273250 is a wasteful number, since it uses less digits than its factorization.

402273250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 402273250 is about 20056.7507338552. The cubic root of 402273250 is about 738.1994513341.

The spelling of 402273250 in words is "four hundred two million, two hundred seventy-three thousand, two hundred fifty".