1090157408 has 48 divisors (see below), whose sum is σ = 2222567424. Its totient is φ = 525809280.

The previous prime is 1090157363. The next prime is 1090157423. The reversal of 1090157408 is 8047510901.

It is a congruent number.

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, 342641 + ... + 345807.

It is an arithmetic number, because the mean of its divisors is an integer number (46303488).

Almost surely, 2^1090157408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1090157408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1111283712).

1090157408 is an abundant number, since it is smaller than the sum of its proper divisors (1132410016).

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

1090157408 is a wasteful number, since it uses less digits than its factorization.

1090157408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 1090157408 is about 33017.5318278032. The cubic root of 1090157408 is about 1029.1920040211.

The spelling of 1090157408 in words is "one billion, ninety million, one hundred fifty-seven thousand, four hundred eight".