1081259396 has 24 divisors (see below), whose sum is σ = 2182735296. Its totient is φ = 459064800.

The previous prime is 1081259383. The next prime is 1081259401. The reversal of 1081259396 is 6939521801.

It is a happy 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, 177455 + ... + 183446.

It is an arithmetic number, because the mean of its divisors is an integer number (90947304).

Almost surely, 2^1081259396 is an apocalyptic number.

It is an amenable number.

1081259396 is an abundant number, since it is smaller than the sum of its proper divisors (1101475900).

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

1081259396 is a wasteful number, since it uses less digits than its factorization.

1081259396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361019 (or 361017 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 1081259396 is about 32882.5089675347. The cubic root of 1081259396 is about 1026.3842162142.

The spelling of 1081259396 in words is "one billion, eighty-one million, two hundred fifty-nine thousand, three hundred ninety-six".