403254540 has 72 divisors (see below), whose sum is σ = 1317305808. Its totient is φ = 99262080.

The previous prime is 403254539. The next prime is 403254563. The reversal of 403254540 is 45452304.

403254540 is a `hidden beast` number, since 40 + 32 + 54 + 540 = 666.

It is a super-2 number, since 2×403254540² = 325228448061223200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83826 + ... + 88505.

It is an arithmetic number, because the mean of its divisors is an integer number (18295914).

Almost surely, 2^403254540 is an apocalyptic number.

It is an amenable number.

403254540 is an abundant number, since it is smaller than the sum of its proper divisors (914051268).

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

403254540 is a wasteful number, since it uses less digits than its factorization.

403254540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172359 (or 172354 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 403254540 is about 20081.1986694022. The cubic root of 403254540 is about 738.7992091041.

The spelling of 403254540 in words is "four hundred three million, two hundred fifty-four thousand, five hundred forty".