1618952090 has 16 divisors (see below), whose sum is σ = 3330415872. Its totient is φ = 555069264.

The previous prime is 1618952089. The next prime is 1618952141. The reversal of 1618952090 is 902598161.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11563874 + ... + 11564013.

It is an arithmetic number, because the mean of its divisors is an integer number (208150992).

Almost surely, 2^1618952090 is an apocalyptic number.

1618952090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1618952090 is an abundant number, since it is smaller than the sum of its proper divisors (1711463782).

1618952090 is a wasteful number, since it uses less digits than its factorization.

1618952090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23127901.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 1618952090 is about 40236.2037225184. The cubic root of 1618952090 is about 1174.2070013734.

The spelling of 1618952090 in words is "one billion, six hundred eighteen million, nine hundred fifty-two thousand, ninety".