403255140 has 96 divisors (see below), whose sum is σ = 1154926080. Its totient is φ = 105100800.

The previous prime is 403255133. The next prime is 403255163. The reversal of 403255140 is 41552304.

It is a super-2 number, since 2×403255140² = 325229415872839200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 403255140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874510 + ... + 874970.

It is an arithmetic number, because the mean of its divisors is an integer number (12030480).

Almost surely, 2^403255140 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 403255140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577463040).

403255140 is an abundant number, since it is smaller than the sum of its proper divisors (751670940).

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

403255140 is a wasteful number, since it uses less digits than its factorization.

403255140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 403255140 is about 20081.2136087439. The cubic root of 403255140 is about 738.7995755222.

The spelling of 403255140 in words is "four hundred three million, two hundred fifty-five thousand, one hundred forty".