1157735442 has 16 divisors (see below), whose sum is σ = 2322919872. Its totient is φ = 384670320.

The previous prime is 1157735437. The next prime is 1157735459. The reversal of 1157735442 is 2445377511.

It is a self number, because there is not a number n which added to its sum of digits gives 1157735442.

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, 308353 + ... + 312084.

It is an arithmetic number, because the mean of its divisors is an integer number (145182492).

Almost surely, 2^1157735442 is an apocalyptic number.

1157735442 is an abundant number, since it is smaller than the sum of its proper divisors (1165184430).

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

1157735442 is a wasteful number, since it uses less digits than its factorization.

1157735442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620753.

The product of its digits is 117600, while the sum is 39.

The square root of 1157735442 is about 34025.5116346544. The cubic root of 1157735442 is about 1050.0333903214.

The spelling of 1157735442 in words is "one billion, one hundred fifty-seven million, seven hundred thirty-five thousand, four hundred forty-two".