1440118690 has 16 divisors (see below), whose sum is σ = 2594060928. Its totient is φ = 575636976.

The previous prime is 1440118649. The next prime is 1440118723. The reversal of 1440118690 is 968110441.

It is a super-2 number, since 2×1440118690² = 4147883682574632200, which contains 22 as substring.

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, 36372 + ... + 64831.

It is an arithmetic number, because the mean of its divisors is an integer number (162128808).

Almost surely, 2^1440118690 is an apocalyptic number.

1440118690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1440118690 is a deficient number, since it is larger than the sum of its proper divisors (1153942238).

1440118690 is a wasteful number, since it uses less digits than its factorization.

1440118690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102633.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1440118690 is about 37948.8957678613. The cubic root of 1440118690 is about 1129.2742592399.

The spelling of 1440118690 in words is "one billion, four hundred forty million, one hundred eighteen thousand, six hundred ninety".