1540690422 has 16 divisors (see below), whose sum is σ = 3097516032. Its totient is φ = 510874280.

The previous prime is 1540690391. The next prime is 1540690429. The reversal of 1540690422 is 2240960451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540690429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671058 + ... + 673349.

It is an arithmetic number, because the mean of its divisors is an integer number (193594752).

Almost surely, 2^1540690422 is an apocalyptic number.

1540690422 is an abundant number, since it is smaller than the sum of its proper divisors (1556825610).

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

1540690422 is a wasteful number, since it uses less digits than its factorization.

1540690422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344603.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1540690422 is about 39251.6295457908. The cubic root of 1540690422 is about 1154.9729001719.

The spelling of 1540690422 in words is "one billion, five hundred forty million, six hundred ninety thousand, four hundred twenty-two".