1542166044 has 12 divisors (see below), whose sum is σ = 3598387464. Its totient is φ = 514055344.

The previous prime is 1542166039. The next prime is 1542166049. The reversal of 1542166044 is 4406612451.

It is an interprime number because it is at equal distance from previous prime (1542166039) and next prime (1542166049).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1542166044² = 4756552214533219872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1542165996 and 1542166014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542166049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64256907 + ... + 64256930.

It is an arithmetic number, because the mean of its divisors is an integer number (299865622).

Almost surely, 2^1542166044 is an apocalyptic number.

It is an amenable number.

1542166044 is an abundant number, since it is smaller than the sum of its proper divisors (2056221420).

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

1542166044 is a wasteful number, since it uses less digits than its factorization.

1542166044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128513844 (or 128513842 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1542166044 is about 39270.4219992605. The cubic root of 1542166044 is about 1155.3415140473.

Adding to 1542166044 its reverse (4406612451), we get a palindrome (5948778495).

The spelling of 1542166044 in words is "one billion, five hundred forty-two million, one hundred sixty-six thousand, forty-four".