1090451838 has 32 divisors (see below), whose sum is σ = 2623645440. Its totient is φ = 295159680.

The previous prime is 1090451837. The next prime is 1090451851. The reversal of 1090451838 is 8381540901.

It is a junction number, because it is equal to n+sod(n) for n = 1090451796 and 1090451805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090451837) 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, 682443 + ... + 684038.

It is an arithmetic number, because the mean of its divisors is an integer number (81988920).

Almost surely, 2^1090451838 is an apocalyptic number.

1090451838 is an abundant number, since it is smaller than the sum of its proper divisors (1533193602).

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

1090451838 is a wasteful number, since it uses less digits than its factorization.

1090451838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366512.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1090451838 is about 33021.9902186407. The cubic root of 1090451838 is about 1029.2846504968.

The spelling of 1090451838 in words is "one billion, ninety million, four hundred fifty-one thousand, eight hundred thirty-eight".