1542050440 has 32 divisors (see below), whose sum is σ = 3965273280. Its totient is φ = 528702912.

The previous prime is 1542050417. The next prime is 1542050441. The reversal of 1542050440 is 440502451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1542050441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2753382 + ... + 2753941.

It is an arithmetic number, because the mean of its divisors is an integer number (123914790).

Almost surely, 2^1542050440 is an apocalyptic number.

1542050440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542050440 is an abundant number, since it is smaller than the sum of its proper divisors (2423222840).

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

1542050440 is a wasteful number, since it uses less digits than its factorization.

1542050440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507341 (or 5507337 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1542050440 is about 39268.9500750911. The cubic root of 1542050440 is about 1155.3126443852.

Adding to 1542050440 its reverse (440502451), we get a palindrome (1982552891).

The spelling of 1542050440 in words is "one billion, five hundred forty-two million, fifty thousand, four hundred forty".