618959040 has 112 divisors (see below), whose sum is σ = 2245961472. Its totient is φ = 141474816.

The previous prime is 618959039. The next prime is 618959041. The reversal of 618959040 is 40959816.

It is an interprime number because it is at equal distance from previous prime (618959039) and next prime (618959041).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×618959040² = 766220586395443200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 618958983 and 618959001.

It is not an unprimeable number, because it can be changed into a prime (618959041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39334 + ... + 52773.

Almost surely, 2^618959040 is an apocalyptic number.

618959040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

618959040 is an abundant number, since it is smaller than the sum of its proper divisors (1627002432).

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

618959040 is a wasteful number, since it uses less digits than its factorization.

618959040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92134 (or 92124 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 618959040 is about 24878.8874349317. The cubic root of 618959040 is about 852.2244113397.

The spelling of 618959040 in words is "six hundred eighteen million, nine hundred fifty-nine thousand, forty".