1098523356 has 48 divisors (see below), whose sum is σ = 2989190400. Its totient is φ = 313862640.

The previous prime is 1098523313. The next prime is 1098523381. The reversal of 1098523356 is 6533258901.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129330 + ... + 137561.

It is an arithmetic number, because the mean of its divisors is an integer number (62274800).

Almost surely, 2^1098523356 is an apocalyptic number.

It is an amenable number.

1098523356 is an abundant number, since it is smaller than the sum of its proper divisors (1890667044).

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

1098523356 is a wasteful number, since it uses less digits than its factorization.

1098523356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266919 (or 266903 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 1098523356 is about 33143.9791817458. The cubic root of 1098523356 is about 1031.8179964176.

The spelling of 1098523356 in words is "one billion, ninety-eight million, five hundred twenty-three thousand, three hundred fifty-six".