1540374546 has 16 divisors (see below), whose sum is σ = 3082968000. Its totient is φ = 513088368.

The previous prime is 1540374503. The next prime is 1540374547. The reversal of 1540374546 is 6454730451.

It is a happy number.

It is a super-2 number, since 2×1540374546² = 4745507483929412232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1540374547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83361 + ... + 100148.

It is an arithmetic number, because the mean of its divisors is an integer number (192685500).

Almost surely, 2^1540374546 is an apocalyptic number.

1540374546 is an abundant number, since it is smaller than the sum of its proper divisors (1542593454).

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

1540374546 is a wasteful number, since it uses less digits than its factorization.

1540374546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184913.

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 1540374546 is about 39247.6056084954. The cubic root of 1540374546 is about 1154.8939630170.

The spelling of 1540374546 in words is "one billion, five hundred forty million, three hundred seventy-four thousand, five hundred forty-six".