1151838390 has 32 divisors (see below), whose sum is σ = 2884605696. Its totient is φ = 293802080.

The previous prime is 1151838371. The next prime is 1151838397. The reversal of 1151838390 is 938381511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151838397) 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, 833976 + ... + 835355.

It is an arithmetic number, because the mean of its divisors is an integer number (90143928).

Almost surely, 2^1151838390 is an apocalyptic number.

1151838390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151838390 is an abundant number, since it is smaller than the sum of its proper divisors (1732767306).

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

1151838390 is a wasteful number, since it uses less digits than its factorization.

1151838390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669364.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1151838390 is about 33938.7446733081. The cubic root of 1151838390 is about 1048.2475347873.

The spelling of 1151838390 in words is "one billion, one hundred fifty-one million, eight hundred thirty-eight thousand, three hundred ninety".