611378240 has 56 divisors (see below), whose sum is σ = 1588203072. Its totient is φ = 222318080.

The previous prime is 611378221. The next prime is 611378279. The reversal of 611378240 is 42873116.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 611378197 and 611378206.

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, 83324 + ... + 90363.

Almost surely, 2^611378240 is an apocalyptic number.

It is an amenable number.

611378240 is an abundant number, since it is smaller than the sum of its proper divisors (976824832).

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

611378240 is a wasteful number, since it uses less digits than its factorization.

611378240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173715 (or 173705 counting only the distinct ones).

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

The square root of 611378240 is about 24726.0639811515. The cubic root of 611378240 is about 848.7308579952.

The spelling of 611378240 in words is "six hundred eleven million, three hundred seventy-eight thousand, two hundred forty".