403254520 has 16 divisors (see below), whose sum is σ = 907322760. Its totient is φ = 161301792.

The previous prime is 403254517. The next prime is 403254529. The reversal of 403254520 is 25452304.

It is a super-2 number, since 2×403254520² = 325228415800860800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403254529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5040642 + ... + 5040721.

Almost surely, 2^403254520 is an apocalyptic number.

403254520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403254520 is an abundant number, since it is smaller than the sum of its proper divisors (504068240).

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

403254520 is a wasteful number, since it uses less digits than its factorization.

403254520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10081374 (or 10081370 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 403254520 is about 20081.1981714239. The cubic root of 403254520 is about 738.7991968901.

The spelling of 403254520 in words is "four hundred three million, two hundred fifty-four thousand, five hundred twenty".