1540023414 has 32 divisors (see below), whose sum is σ = 3159087360. Its totient is φ = 500224032.

The previous prime is 1540023409. The next prime is 1540023431. The reversal of 1540023414 is 4143200451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106464 + ... + 120060.

It is an arithmetic number, because the mean of its divisors is an integer number (98721480).

Almost surely, 2^1540023414 is an apocalyptic number.

1540023414 is an abundant number, since it is smaller than the sum of its proper divisors (1619063946).

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

1540023414 is a wasteful number, since it uses less digits than its factorization.

1540023414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14084.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1540023414 is about 39243.1320615468. The cubic root of 1540023414 is about 1154.8062027501.

Adding to 1540023414 its reverse (4143200451), we get a palindrome (5683223865).

The spelling of 1540023414 in words is "one billion, five hundred forty million, twenty-three thousand, four hundred fourteen".