618652356 has 24 divisors (see below), whose sum is σ = 1649739840. Its totient is φ = 176757792.

The previous prime is 618652303. The next prime is 618652357. The reversal of 618652356 is 653256816.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (618652357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3682371 + ... + 3682538.

It is an arithmetic number, because the mean of its divisors is an integer number (68739160).

Almost surely, 2^618652356 is an apocalyptic number.

It is an amenable number.

618652356 is an abundant number, since it is smaller than the sum of its proper divisors (1031087484).

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

618652356 is a wasteful number, since it uses less digits than its factorization.

618652356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364923 (or 7364921 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 618652356 is about 24872.7231319773. The cubic root of 618652356 is about 852.0836337042.

The spelling of 618652356 in words is "six hundred eighteen million, six hundred fifty-two thousand, three hundred fifty-six".