1540196622 has 72 divisors (see below), whose sum is σ = 3471488280. Its totient is φ = 493495200.

The previous prime is 1540196621. The next prime is 1540196657. The reversal of 1540196622 is 2266910451.

1540196622 is a `hidden beast` number, since 1 + 540 + 1 + 96 + 6 + 22 = 666.

1540196622 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540196621) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4652997 + ... + 4653327.

It is an arithmetic number, because the mean of its divisors is an integer number (48215115).

Almost surely, 2^1540196622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1540196622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1735744140).

1540196622 is an abundant number, since it is smaller than the sum of its proper divisors (1931291658).

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

1540196622 is a wasteful number, since it uses less digits than its factorization.

1540196622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1540196622 is about 39245.3388569904. The cubic root of 1540196622 is about 1154.8494952032.

The spelling of 1540196622 in words is "one billion, five hundred forty million, one hundred ninety-six thousand, six hundred twenty-two".