1091434 has 16 divisors (see below), whose sum is σ = 1772928. Its totient is φ = 501952.

The previous prime is 1091413. The next prime is 1091443. The reversal of 1091434 is 4341901.

1091434 = 8² + 9² + ... + 148².

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, 1257 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (110808).

2^1091434 is an apocalyptic number.

1091434 is a deficient number, since it is larger than the sum of its proper divisors (681494).

1091434 is a wasteful number, since it uses less digits than its factorization.

1091434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1091434 is about 1044.7171866108. The cubic root of 1091434 is about 102.9593580819.

The spelling of 1091434 in words is "one million, ninety-one thousand, four hundred thirty-four".