1077591242 has 24 divisors (see below), whose sum is σ = 2024926596. Its totient is φ = 426299328.

The previous prime is 1077591209. The next prime is 1077591247. The reversal of 1077591242 is 2421957701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 834574321 + 243016921 = 28889^2 + 15589^2 .

It is a super-2 number, since 2×1077591242² = 2322405769670205128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1077591196 and 1077591205.

It is not an unprimeable number, because it can be changed into a prime (1077591247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421643 + ... + 424190.

Almost surely, 2^1077591242 is an apocalyptic number.

1077591242 is a deficient number, since it is larger than the sum of its proper divisors (947335354).

1077591242 is a wasteful number, since it uses less digits than its factorization.

1077591242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845862 (or 845855 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1077591242 is about 32826.6849072519. The cubic root of 1077591242 is about 1025.2222375939. Note that the first 4 decimals are identical.

The spelling of 1077591242 in words is "one billion, seventy-seven million, five hundred ninety-one thousand, two hundred forty-two".