1540673354 has 24 divisors (see below), whose sum is σ = 2635500672. Its totient is φ = 669852920.

The previous prime is 1540673341. The next prime is 1540673357. The reversal of 1540673354 is 4533760451.

It is not an unprimeable number, because it can be changed into a prime (1540673357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54554 + ... + 77829.

It is an arithmetic number, because the mean of its divisors is an integer number (109812528).

Almost surely, 2^1540673354 is an apocalyptic number.

1540673354 is a deficient number, since it is larger than the sum of its proper divisors (1094827318).

1540673354 is a wasteful number, since it uses less digits than its factorization.

1540673354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132442 (or 132419 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 1540673354 is about 39251.4121274636. The cubic root of 1540673354 is about 1154.9686351683.

The spelling of 1540673354 in words is "one billion, five hundred forty million, six hundred seventy-three thousand, three hundred fifty-four".