1540453430 has 16 divisors (see below), whose sum is σ = 2783052864. Its totient is φ = 613906560.

The previous prime is 1540453429. The next prime is 1540453441. The reversal of 1540453430 is 343540451.

It is a junction number, because it is equal to n+sod(n) for n = 1540453393 and 1540453402.

It is a congruent number.

It is an unprimeable number.

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, 281507 + ... + 286926.

It is an arithmetic number, because the mean of its divisors is an integer number (173940804).

Almost surely, 2^1540453430 is an apocalyptic number.

1540453430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1540453430 is a deficient number, since it is larger than the sum of its proper divisors (1242599434).

1540453430 is a wasteful number, since it uses less digits than its factorization.

1540453430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568711.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1540453430 is about 39248.6105486551. The cubic root of 1540453430 is about 1154.9136770752.

Adding to 1540453430 its reverse (343540451), we get a palindrome (1883993881).

The spelling of 1540453430 in words is "one billion, five hundred forty million, four hundred fifty-three thousand, four hundred thirty".