612801340 has 24 divisors (see below), whose sum is σ = 1299628512. Its totient is φ = 242692800.

The previous prime is 612801331. The next prime is 612801359. The reversal of 612801340 is 43108216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149664 + ... + 153703.

It is an arithmetic number, because the mean of its divisors is an integer number (54151188).

Almost surely, 2^612801340 is an apocalyptic number.

It is an amenable number.

612801340 is an abundant number, since it is smaller than the sum of its proper divisors (686827172).

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

612801340 is a wasteful number, since it uses less digits than its factorization.

612801340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303477 (or 303475 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 612801340 is about 24754.8245802712. The cubic root of 612801340 is about 849.3888756042.

Adding to 612801340 its reverse (43108216), we get a palindrome (655909556).

The spelling of 612801340 in words is "six hundred twelve million, eight hundred one thousand, three hundred forty".