1542067780 has 24 divisors (see below), whose sum is σ = 3532737600. Its totient is φ = 560751840.

The previous prime is 1542067771. The next prime is 1542067781. The reversal of 1542067780 is 877602451.

It is a super-2 number, since 2×1542067780² = 4755946076228256800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1542067781) 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, 3504480 + ... + 3504919.

It is an arithmetic number, because the mean of its divisors is an integer number (147197400).

Almost surely, 2^1542067780 is an apocalyptic number.

1542067780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542067780 is an abundant number, since it is smaller than the sum of its proper divisors (1990669820).

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

1542067780 is a wasteful number, since it uses less digits than its factorization.

1542067780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009419 (or 7009417 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1542067780 is about 39269.1708595942. The cubic root of 1542067780 is about 1155.3169747766.

The spelling of 1542067780 in words is "one billion, five hundred forty-two million, sixty-seven thousand, seven hundred eighty".