1542722040 has 48 divisors (see below), whose sum is σ = 5013847800. Its totient is φ = 411392448.

The previous prime is 1542722003. The next prime is 1542722087. The reversal of 1542722040 is 402272451.

1542722040 is a `hidden beast` number, since 15 + 427 + 220 + 4 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1542721995 and 1542722013.

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 11 ways as a sum of consecutive naturals, for example, 2142310 + ... + 2143029.

Almost surely, 2^1542722040 is an apocalyptic number.

1542722040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542722040 is an abundant number, since it is smaller than the sum of its proper divisors (3471125760).

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

1542722040 is a wasteful number, since it uses less digits than its factorization.

1542722040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285356 (or 4285349 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 1542722040 is about 39277.5004296353. The cubic root of 1542722040 is about 1155.4803421761.

Adding to 1542722040 its reverse (402272451), we get a palindrome (1944994491).

The spelling of 1542722040 in words is "one billion, five hundred forty-two million, seven hundred twenty-two thousand, forty".