1540487214 has 64 divisors (see below), whose sum is σ = 3922490880. Its totient is φ = 438998400.

The previous prime is 1540487209. The next prime is 1540487233. The reversal of 1540487214 is 4127840451.

It is a happy number.

1540487214 is a `hidden beast` number, since 1 + 540 + 48 + 72 + 1 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146497 + ... + 156659.

It is an arithmetic number, because the mean of its divisors is an integer number (61288920).

Almost surely, 2^1540487214 is an apocalyptic number.

1540487214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1540487214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1961245440).

1540487214 is an abundant number, since it is smaller than the sum of its proper divisors (2382003666).

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

1540487214 is a wasteful number, since it uses less digits than its factorization.

1540487214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10582 (or 10576 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 1540487214 is about 39249.0409309578. The cubic root of 1540487214 is about 1154.9221198963.

The spelling of 1540487214 in words is "one billion, five hundred forty million, four hundred eighty-seven thousand, two hundred fourteen".