493212540 has 48 divisors (see below), whose sum is σ = 1382105088. Its totient is φ = 131417664.

The previous prime is 493212539. The next prime is 493212557. The reversal of 493212540 is 45212394.

It is a super-2 number, since 2×493212540² = 486517219226503200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 493212498 and 493212507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97309 + ... + 102251.

It is an arithmetic number, because the mean of its divisors is an integer number (28793856).

Almost surely, 2^493212540 is an apocalyptic number.

It is an amenable number.

493212540 is an abundant number, since it is smaller than the sum of its proper divisors (888892548).

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

493212540 is a wasteful number, since it uses less digits than its factorization.

493212540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618 (or 6616 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 493212540 is about 22208.3889555276. The cubic root of 493212540 is about 790.0926772649.

The spelling of 493212540 in words is "four hundred ninety-three million, two hundred twelve thousand, five hundred forty".