1542947020 has 48 divisors (see below), whose sum is σ = 3358656000. Its totient is φ = 595007424.

The previous prime is 1542947017. The next prime is 1542947023. The reversal of 1542947020 is 207492451.

It is an interprime number because it is at equal distance from previous prime (1542947017) and next prime (1542947023).

It is not an unprimeable number, because it can be changed into a prime (1542947023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50731 + ... + 75229.

It is an arithmetic number, because the mean of its divisors is an integer number (69972000).

Almost surely, 2^1542947020 is an apocalyptic number.

1542947020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542947020 is an abundant number, since it is smaller than the sum of its proper divisors (1815708980).

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

1542947020 is a wasteful number, since it uses less digits than its factorization.

1542947020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24622 (or 24620 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1542947020 is about 39280.3643058462. The cubic root of 1542947020 is about 1155.5365085549.

The spelling of 1542947020 in words is "one billion, five hundred forty-two million, nine hundred forty-seven thousand, twenty".