611278340 has 24 divisors (see below), whose sum is σ = 1285956672. Its totient is φ = 244078560.

The previous prime is 611278331. The next prime is 611278363. The reversal of 611278340 is 43872116.

It is a super-2 number, since 2×611278340² = 747322417906311200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 611278297 and 611278306.

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, 15344 + ... + 38183.

It is an arithmetic number, because the mean of its divisors is an integer number (53581528).

Almost surely, 2^611278340 is an apocalyptic number.

It is an amenable number.

611278340 is an abundant number, since it is smaller than the sum of its proper divisors (674678332).

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

611278340 is a wasteful number, since it uses less digits than its factorization.

611278340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54107 (or 54105 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 611278340 is about 24724.0437631064. The cubic root of 611278340 is about 848.6846275682.

The spelling of 611278340 in words is "six hundred eleven million, two hundred seventy-eight thousand, three hundred forty".