134311440 has 40 divisors (see below), whose sum is σ = 416366208. Its totient is φ = 35816320.

The previous prime is 134311409. The next prime is 134311451. The reversal of 134311440 is 44113431.

It is a tau number, because it is divible by the number of its divisors (40).

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, 279576 + ... + 280055.

Almost surely, 2^134311440 is an apocalyptic number.

134311440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134311440 is an abundant number, since it is smaller than the sum of its proper divisors (282054768).

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

134311440 is a wasteful number, since it uses less digits than its factorization.

134311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559647 (or 559641 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 134311440 is about 11589.2812546767. The cubic root of 134311440 is about 512.1191332477.

Adding to 134311440 its reverse (44113431), we get a palindrome (178424871).

The spelling of 134311440 in words is "one hundred thirty-four million, three hundred eleven thousand, four hundred forty".