1540421366 has 32 divisors (see below), whose sum is σ = 2647835136. Its totient is φ = 665280000.

The previous prime is 1540421359. The next prime is 1540421411. The reversal of 1540421366 is 6631240451.

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, 66326 + ... + 86486.

It is an arithmetic number, because the mean of its divisors is an integer number (82744848).

Almost surely, 2^1540421366 is an apocalyptic number.

1540421366 is a deficient number, since it is larger than the sum of its proper divisors (1107413770).

1540421366 is a wasteful number, since it uses less digits than its factorization.

1540421366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20348.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1540421366 is about 39248.2020734708. The cubic root of 1540421366 is about 1154.9056639780.

The spelling of 1540421366 in words is "one billion, five hundred forty million, four hundred twenty-one thousand, three hundred sixty-six".