1540404074 has 16 divisors (see below), whose sum is σ = 2601974016. Its totient is φ = 677596800.

The previous prime is 1540404059. The next prime is 1540404077. The reversal of 1540404074 is 4704040451.

It is a happy number.

It is a super-2 number, since 2×1540404074² = 4745689422391594952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1540404077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128647 + ... + 1130010.

It is an arithmetic number, because the mean of its divisors is an integer number (162623376).

Almost surely, 2^1540404074 is an apocalyptic number.

1540404074 is a deficient number, since it is larger than the sum of its proper divisors (1061569942).

1540404074 is a wasteful number, since it uses less digits than its factorization.

1540404074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258701.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 1540404074 is about 39247.9817825070. The cubic root of 1540404074 is about 1154.9013424973.

The spelling of 1540404074 in words is "one billion, five hundred forty million, four hundred four thousand, seventy-four".