403255554240 has 448 divisors, whose sum is σ = 1597855039488. Its totient is φ = 83709849600.

The previous prime is 403255554217. The next prime is 403255554283. The reversal of 403255554240 is 42455552304.

It is a tau number, because it is divible by the number of its divisors (448).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98089785 + ... + 98093895.

Almost surely, 2^403255554240 is an apocalyptic number.

403255554240 is a gapful number since it is divisible by the number (40) 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 403255554240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798927519744).

403255554240 is an abundant number, since it is smaller than the sum of its proper divisors (1194599485248).

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

403255554240 is a wasteful number, since it uses less digits than its factorization.

403255554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476 (or 5466 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 39.

The spelling of 403255554240 in words is "four hundred three billion, two hundred fifty-five million, five hundred fifty-four thousand, two hundred forty".