612464540 has 12 divisors (see below), whose sum is σ = 1286175576. Its totient is φ = 244985808.

The previous prime is 612464537. The next prime is 612464549. The reversal of 612464540 is 45464216.

It is a super-2 number, since 2×612464540² = 750225625514823200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 612464497 and 612464506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612464549) 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, 15311594 + ... + 15311633.

It is an arithmetic number, because the mean of its divisors is an integer number (107181298).

Almost surely, 2^612464540 is an apocalyptic number.

It is an amenable number.

612464540 is an abundant number, since it is smaller than the sum of its proper divisors (673711036).

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

612464540 is a wasteful number, since it uses less digits than its factorization.

612464540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30623236 (or 30623234 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 612464540 is about 24748.0209309755. The cubic root of 612464540 is about 849.2332370200.

The spelling of 612464540 in words is "six hundred twelve million, four hundred sixty-four thousand, five hundred forty".