1090197924 has 12 divisors (see below), whose sum is σ = 2543795184. Its totient is φ = 363399304.

The previous prime is 1090197923. The next prime is 1090197931. The reversal of 1090197924 is 4297910901.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1090197923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45424902 + ... + 45424925.

It is an arithmetic number, because the mean of its divisors is an integer number (211982932).

Almost surely, 2^1090197924 is an apocalyptic number.

It is an amenable number.

1090197924 is an abundant number, since it is smaller than the sum of its proper divisors (1453597260).

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

1090197924 is a wasteful number, since it uses less digits than its factorization.

1090197924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90849834 (or 90849832 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1090197924 is about 33018.1453749298. The cubic root of 1090197924 is about 1029.2047539311.

The spelling of 1090197924 in words is "one billion, ninety million, one hundred ninety-seven thousand, nine hundred twenty-four".