1542450434 has 64 divisors (see below), whose sum is σ = 2815741440. Its totient is φ = 619799040.

The previous prime is 1542450421. The next prime is 1542450439. The reversal of 1542450434 is 4340542451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542450434.

It is not an unprimeable number, because it can be changed into a prime (1542450439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2103932 + ... + 2104664.

It is an arithmetic number, because the mean of its divisors is an integer number (43995960).

Almost surely, 2^1542450434 is an apocalyptic number.

1542450434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1542450434 is a deficient number, since it is larger than the sum of its proper divisors (1273291006).

1542450434 is a wasteful number, since it uses less digits than its factorization.

1542450434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 1542450434 is about 39274.0427509061. The cubic root of 1542450434 is about 1155.4125283153.

Adding to 1542450434 its reverse (4340542451), we get a palindrome (5882992885).

The spelling of 1542450434 in words is "one billion, five hundred forty-two million, four hundred fifty thousand, four hundred thirty-four".