1011999274 has 32 divisors (see below), whose sum is σ = 1787438016. Its totient is φ = 423649920.

The previous prime is 1011999271. The next prime is 1011999293. The reversal of 1011999274 is 4729991101.

It is a super-4 number, since 4×1011999274⁴ (a number of 37 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1011999274.

It is not an unprimeable number, because it can be changed into a prime (1011999271) 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, 129774 + ... + 137350.

It is an arithmetic number, because the mean of its divisors is an integer number (55857438).

Almost surely, 2^1011999274 is an apocalyptic number.

1011999274 is a deficient number, since it is larger than the sum of its proper divisors (775438742).

1011999274 is a wasteful number, since it uses less digits than its factorization.

1011999274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 1011999274 is about 31811.9360303645. The cubic root of 1011999274 is about 1003.9838657376.

The spelling of 1011999274 in words is "one billion, eleven million, nine hundred ninety-nine thousand, two hundred seventy-four".